When a new executive steps into a leadership role, the board sees a strategy. The organization sees a signal.
According to Neill Marshall and Kurt Mosley of HealthSearch Partners, those signals, often delivered in small and seemingly insignificant moments, determine whether a leader builds lasting credibility or flames out before the first quarter ends.
After nearly three decades of recruiting senior leaders into complex organizations, they have witnessed hundreds of leadership transitions. Their vantage point is rare. They see what happens before the offer, during the honeymoon phase, and long after early enthusiasm fades.
Their conclusion is clear. The first 90 days are not about bold strategy. They are about earning trust.
Set the Tone
“The first 90 days set the tone for your entire tenure,” says Marshall. “People remember what you did when you walked in the door.”
Those early decisions become shorthand for who you are.
Do you listen? Do you overreact? Are you consistent?
Executives often underestimate the invisible tests happening around them. Employees are watching how leaders respond to bad news. They are evaluating whether their input matters. They are determining whether this new leader is predictable, steady, and safe to tell the truth to.
If leaders overreact, bad news stops flowing. If they behave inconsistently, predictability disappears. If they talk more than they listen, credibility erodes quickly.
Regardless of industry, trust becomes the operating system of the organization.
A Bad Start
One CEO negotiated upfront with his board that there would be no sacred cows. Within his first 30 days, he removed a highly respected executive he believed was not a fit.
Technically, he had authority.
Culturally, he misread the room.
The dismissed executive was one of the most admired leaders in the organization. The fallout was immediate and severe. Within 60 days, the new CEO was gone.
The lesson is not to avoid tough decisions. It is to understand symbolic impact before taking action.
“Early actions are interpreted symbolically, whether you intend them to be or not,” Mosley explains.
Even small missteps can send unintended messages. One newly appointed executive brought donuts from a national chain to his first all-hands meeting, unaware that the organization had supported a beloved local bakery for decades. It seemed minor. Instead, it signaled that he had not taken time to understand the community and its traditions.
Early signals matter more than leaders realize.
Building Momentum Quickly
If credibility can be lost quickly, it can also be built deliberately.
Marshall shares the story of Richard Parks, former CEO of a large multi-hospital system in Texas. When Parks took a new role, he did not settle into a private office and schedule listening sessions. He moved into the organization.
For 90 days, he lived in a resident dorm room. On his first morning, he asked how everyone slept. The answer was clear. The mattresses were terrible. That same day, he worked with facilities to purchase and replace every mattress.
It was a practical solution to a small problem. It became a legendary story about leadership.
“People talked about it on his last day there, 12 years later,” Marshall says.
The action signaled humility, accessibility, and responsiveness. It demonstrated that leadership was present and paying attention.
Other examples follow the same pattern:
A CEO who walked the parking lot picking up trash without saying a word.
A system leader who personally changed burned out light bulbs during facility visits rather than criticizing staff.
Dan Castillo, former CEO of LAC+USC Medical Center, who showed up at 2 a.m. to conduct night rounds on his first day.
These are symbolic acts. They establish tone without memos. And they spread faster than any internal communication plan.
The Moves That Backfire
Boards often expect immediate action. That urgency can push leaders into hurried decisions.
Mosley references legendary coach John Wooden, who advised players, “Be quick, but do not hurry.”
There is a difference. Quick leaders have a plan and execute deliberately. Hurried leaders skip steps and act before listening.
Common early mistakes include:
Talking excessively about how things were done at the previous organization.
Restructuring before understanding culture.
Removing legacy leaders without political groundwork.
Acting decisively without clarifying vision first.
These moves feel bold. They often communicate insecurity.
Leaders rarely fail because they lack technical skill. They fail because they misread culture.
“Culture is the invisible infrastructure,” Mosley explains. “It either accelerates or undermines every strategic initiative you try to implement.” That is true in any industry.
The Isolation
For leaders promoted internally, the transition can be even more disorienting.
Peers stop being candid. Conversations change. Scrutiny increases.
The isolation surprises many first time executives. The unvarnished truth becomes harder to access. That makes emotional discipline and visibility even more critical.
Marshall advises aspiring leaders to prepare before they step into the top role. Build thought leadership. Raise your visibility. Practice listening without always fixing. Develop emotional discipline long before the spotlight intensifies.
“The 90 days do not start on day one,” he says. “They start today.”
The First Priorities
In turnaround situations, fear runs high. People scan constantly for threats.
Marshall outlines four priorities:
1. Set the tone through a symbolic act.
2. Clarify reality so everyone shares the same understanding of what is happening.
3. Secure an early win that benefits employees or key stakeholders rather than the leader personally.
4. Regulate fear. Calm presence matters more than brilliance.
One executive negotiated his early win before even accepting the job. During compensation discussions, he secured board approval to implement long overdue pay adjustments for a critical employee group. When he arrived, he was already positioned to deliver tangible improvement.
That early credibility created momentum.
Trust Before Strategy
When asked for their single most important piece of advice, both Marshall and Mosley return to the same theme.
“You need to earn trust before you can lead.”
Mosley adds that trust is built through consistency, especially when it is inconvenient. Integrity shows up in moments, not memos.
Silence breeds speculation.
Inconsistency breeds skepticism.
Behavior overrides strategy.
Leaders who succeed long term understand that enthusiasm is easy to spark in the first few weeks. Sustained trust is harder and far more valuable.
The first 90 days are not about proving how smart you are. They are about proving that you are steady, present, and worthy of trust. Strategy can follow.