The most important skill for a first-time manager isn't delegation, prioritization, or even technical competence. It's the ability to build trust with people who are watching you closely and wondering if you'll protect them, advocate for them, and tell them the truth. Matt Gjertsen, founder of Built and author of *Minimum Viable Manager*, argues that trust, feedback, and alignment are the three foundational skills new managers need right now, and he's correct to place them above any process or tooling. This matters even more as AI reshapes how teams work, because when the nature of the work itself becomes fluid, the human glue holding teams together is the only stable asset you have.
Gjertsen's framing is refreshingly practical. He doesn't suggest that new managers need to become charismatic leaders overnight. Instead, he focuses on behaviors: giving feedback that is specific and timely, creating alignment so people understand how their individual tasks connect to team outcomes, and building trust through consistency and vulnerability. For readers who have spent years in individual contributor roles, this is a shift in mindset, not just a checklist. You are no longer measured by what you produce, but by how well you enable others to produce. That distinction is easy to grasp and hard to internalize. The Twenty Years of Platform Lessons: Building for Resilience Without the Complexity piece makes a similar point at the systems level: resilience comes from simplicity and clear principles, not from adding more layers. Management works the same way. A new manager who tries to implement a dozen frameworks will fail; one who masters trust, feedback, and alignment will build a team that survives ambiguity.
What makes Gjertsen's advice urgent is the AI context. As tools like those behind LMArena's $200M raise brings sharper focus to AI honesty and alignment become more capable, the nature of individual contribution is changing. Tasks that once required deep manual effort are becoming automated, which means managers must help their teams navigate a shifting definition of value. That requires honest feedback about what skills matter now, and alignment on new goals. It also requires trust, because people will be asked to do things they've never done before, and they will only take that risk if they believe their manager has their back. The security engineering conversation, How security engineering is shifting from human vigilance to automated defenses, reinforces this: as vigilance moves from humans to systems, the human role becomes judgment, exception handling, and communication. Those are exactly the skills Gjertsen says managers must cultivate in themselves and their reports.
The takeaway here is direct: if you are a new manager, stop worrying about mastering every product detail and start practicing one difficult conversation per week. Pick a piece of feedback you've been avoiding, deliver it with specificity and care, and then check in on whether the other person understood your intent. That single habit will do more for your team's performance than any amount of reading about leadership theory. The open question worth watching is whether organizations will invest in training these skills as seriously as they invest in technical onboarding. Most won't, at least not yet. That means the managers who take Gjertsen's advice seriously will have a compounding advantage, one that no AI assistant can replicate.