Your First 90 Days in a New Leadership Role: How to Protect Your Judgment

The first 90 days in any new formal leadership role are demanding. You step into a system you did not design, inherit histories you do not own, and are expected to make decisions before fully establishing your authority.

These challenges are universal.

What makes the first 90 days harder for many women leaders is how their decisions are interpreted. Often, women’s decisions and behaviors are compared against a narrower set of expectations. Women also have fewer examples of different ways to exercise authority, and many enter senior roles without having had the same opportunities to practice making difficult decisions in lower-stakes environments.

Taken together, this means the first 90 days are especially challenging as they work to establish their authority while navigating heightened scrutiny of their decisions.

The key is to protect the environment necessary for good decision-making long enough to understand the role, build relationships, and establish the credibility needed to exercise your authority effectively.

The First Question: Are You Diagnosing or Stabilizing?

Most leadership transitions call for diagnosis before action. This means, taking the time to understand the history, power dynamics, loss, and constraints that impact your decisions before taking action. This is especially important when you are new and do not yet understand how the system actually works.

There is an exception.

If you are entering a system marked by a lot of uncertainty, distrust, or acute strain, extended observation alone may not be enough. In those conditions, people may be too overwhelmed to think clearly and make effective decisions. A Leaders role is to create enough order for people to orient and act together.

To make that distinction, leaders need to develop the judgment to recognize when a situation requires immediate action. This is a critical decision because it will shape all of the decisions that follow. For example, extended diagnosis in a destabilized system can create a vacuum that others will fill, while premature action in a system that needs understanding locks you into solving the wrong problem.

For women leaders, making the decision is harder because either one can be misread by others. On one end, stabilizing action can look like overreach, while continued diagnosis can seem indecisive. Making this distinction helps you respond to what the situation actually requires, rather than acting prematurely or delaying when immediate action is needed.

When Diagnosis Is Not Enough

Recognizing when a situation requires immediate action is only the first step. Leaders must also decide how to respond without rushing into decisions when they have incomplete information. This is particularly difficult when uncertainty is high and the pressure to act is growing.

In these cases, a structured approach can help leaders create stability while continuing to learn about the problems they are trying to solve.

The FOG FILTER

The FOG FILTER is a framework designed to help leaders navigate environments marked by uncertainty and distrust, establish stability, and make informed decisions even when they don't yet have a complete understanding of the situation.

It begins by helping leaders create enough order and clarity for their teams to think collectively, assess problems from different perspectives, and determine how best to move forward.

The first stage of the FOG FILTER,

F – Frame: Clarify what is known, remains uncertain, and requires immediate attention.

O – Orient: Establish clear roles, decision-making responsibilities, and channels for sharing information.

G – Gauge: Identify where the organization is under the most strain and what cannot fail.

These initial steps signal to the team that leadership is working without pretending they are certain about what is happening.

Once these conditions are in place, leaders can use the second part of the framework, FILTER, to evaluate potential actions.

FILTER encourages leaders to evaluate potential actions by considering whether they:

F – Fast: Respond quickly enough to the urgency of the situation.

I – Inaction: Recognize when the risks of inaction outweigh those of moving forward.

L – Learn: Generate new information and opportunities for learning.

T – Trust: Build or strengthen trust among those affected.

E – Enable: Preserve or create options for future action.

R – Reversible: Can be adjusted or reversed as new information emerges.

Together, FOG and FILTER provide a structured approach to making decisions under uncertainty, allowing leaders to take meaningful action while continuing to learn and adapt as the situation evolves.

Be Careful What You Align With Early

In the early weeks, people will come to you. Some will be warm, enthusiastic, and eager to help you “understand how things really work.” Others will position themselves as allies, victims, or truth-tellers.

If you align yourself too early with one group, you risk limiting your access to competing perspectives, making it harder to consider alternative interpretations and develop a complete understanding of the situation. In the first 90 days, what matters most is being able to diagnose situations accurately, and you need to understand the range of perspectives to do so.

For women leaders, the pull to align with one side can be stronger. Early relational alignment is often socially rewarded, and misalignment can feel risky. However, premature alignment collapses perspective and distorts judgment.

Instead of aligning, start by understanding what dynamics you are being invited into, and why.

Treat Everything as Data

Almost everything you encounter in the first 90 days is information to consider before drawing conclusions.

Your capacity to make good decisions depends on seeing the system accurately. But early on, you are working with fragments of information. You will hear individual complaints, competing explanations, and confident assertions about “how things really work.” Each is evidence from one position in the system. If you focus solely on the fragments, you risk treating the symptoms, instead of solving the root causes of the problems.

This requires keeping an open mind as you continue to gather information. When you hear a strong opinion or recurring complaint, ask yourself:

• Is this a symptom?
• Where does this show up elsewhere, is the same problem described in different ways?
• What issues are easy to name, and which ones are not addressed directly?

Leaders who act on surface explanations often solve the wrong problem very efficiently. Recognizing patterns is especially important during this period because it helps leaders consider different explanations, identify underlying problems, and avoid drawing conclusions before they have enough information.

Do Not Take Early Decision Feedback Personally

In the first 90 days, people are mostly responding to what you represent. You are a new authority figure, entering an existing system. Hope, fear, competition, loyalty, and resentment all get projected quickly.

If you take those reactions personally, your decision-making will worsen. You become more focused on making others comfortable with your decisions than on using your authority to make the decisions the organization needs. You also miss the opportunity to understand what people’s reactions reveal about the underlying tensions and challenges within the organization.

This is something I learned when I was working in Iraq and Somalia. As an outsider, your intuitions can be wrong, your assumptions incomplete, and people may actively try to recruit you into dynamics you do not yet understand.

Humility and caution have to coexist:

Humility, because you do not yet know the system

Caution, because others may try to influence your decisions, test your authority, or draw you into conflicts you do not yet fully understand.

At this stage you need to treat early reactions as information about the system. When someone resists a decision, the useful question is “What does this resistance tell me about what is being threatened, what is changing, or what I do not yet see?” Staying in that inquiry mindset, without becoming passive, protects your capacity to make decisions.

How You Show Up Is Already a Decision Signal

In the first 90 days, small moments carry disproportionate weight.

Consider this situations: You walk past someone without acknowledging them because you are stressed about your next meeting. If you are a peer, these moments usually pass unnoticed. If you are the new leader, they are interpreted.

Most of those interpretations will be wrong. That does not stop them from shaping how people perceive you, and therefore what information they opt to share with you.

This is about recognizing that authority amplifies ordinary behavior. When you are visibly preoccupied, people read it as “now is not the time” or “she doesn’t want to hear this.” Over time, those micro-signals create macro-patterns in what information flows to you, and this can directly determines the conditions under which you make decisions.

Good decision-making requires access to uncomfortable truths, emerging problems, and dissenting perspectives. Your presence either protects or degrades that access.

Do Not Confuse Tasks With Leadership Work

One of the most common early mistakes is confusing tasks with work.

A leader remains accountable for results but cannot create durable performance by personally doing the system's work. The leadership task is to clarify purpose, authority, standards, and learning, then ensure that responsibility is distributed appropriately.

Those responsibilities include:

clarity about decision rights

boundaries around performance and behavior

norms for how disagreement is handled

a shared sense of direction

When you do the work yourself, even when you have the skills and it feels more concrete than the ambiguous work of “creating conditions,” you compromise your judgment in two ways. First, you lose perspective. When you are inside the work, you cannot see whether a problem is a one-time issue or a systemic pattern. Second, you signal that you will take on problems and let others off the hook for solving them.

Many leaders enter with the belief that they were hired to fix things, create a new vision, or make their mark. Sometimes that is true, because authority does exists in part to provide direction, order, and protection.

But sometimes there is already an order. There is already a functioning culture. People believe things are on track. In those cases, unnecessary change creates instability.

As the leader, you need to distinguish between what the environment needs.

Closing

The first 90 days are about protecting the conditions that allow you to make decisions well: access to competing perspectives, the ability to see patterns and not solely symptoms, enough stability to think clearly, and the discipline to stay oriented to system needs above individual comfort.

For women leaders, these conditions are harder because authority is interpreted more narrowly and early missteps carry more weight. However, the work remains the same. Leadership takes hold when the conditions for make good decisions are set. That is what you need to build in the first 90 days.