The most effective way for operating partners to integrate post-acquisition is not by presenting a strategic plan, but by asking "What do you need help with?" and performing hands-on, tactical work to fill immediate talent or resource gaps, which builds trust and yields deep insights.

Upon joining Terns Pharmaceuticals after the former CEO's passing, Amy Burrows intentionally adopted a pre-existing cultural practice called "Share Good News" in leadership meetings. This demonstrates how a new leader can build rapport and show respect for a company's history by identifying and continuing positive rituals, rather than imposing a completely new culture.

Collaborating with the CEO on hiring for key leadership gaps is a powerful trust-building tool. It provides tangible help on a time-intensive process, demonstrates value, and forces alignment on the skills and profiles needed for the company's next chapter.

During Sonome's near-collapse, one co-founder stabilized the company internally by personally meeting with every employee to secure their commitment. This demonstrates that in a crisis, a co-founder's most vital contribution can be maintaining team trust and culture, allowing the CEO to focus externally.

Colleagues will inevitably view an interim leader as temporary, potentially delaying key decisions for the permanent successor. Successful interims accept this "outsider" status. Their primary goal is not deep organizational integration but a laser focus on achieving the specific deliverable they were brought in to accomplish.

To build alliances with C-suite peers like the CFO, a new executive should act as a 'servant leader.' Instead of asserting authority, frame your function's role as being in service of their agenda. Asking "how can we make your life easier?" builds trust and collaboration from day one.

Successor CEOs cannot replicate the founder's all-encompassing "working memory" of the company and its products. Recognizing this is key. The role must shift from knowing everything to building a cohesive team and focusing on the few strategic decisions only the CEO can make.

To transition from founder to CEO, Unbound Merino's co-founder admitted his own uncertainty and directly asked his top executive what she needed from him to consider him a great CEO. This act of vulnerability built trust and provided a clear path for his leadership development.

When transitioning into a new role, especially a cross-functional one like product, relying on a title is a weak foundation for credibility. Earning respect through informal authority—by demonstrating value and influence—builds a much stronger and more lasting leadership position.