5 Essential Reads on Trust, AI, and Building Teams That Perform
Every month brings a flood of new research, talks, and reports on leadership and team building … and almost no time to actually read them. So each month we cut through the noise and gather a handful of the most useful, credible, and thought-provoking pieces for leaders at mid to large organizations.
This May, a clear theme emerged. As artificial intelligence reshapes how work gets done and employee engagement sits at historic lows, the human fundamentals: trust, recognition, and the everyday quality of leadership matter more than ever.
Here are five pieces worth your time, and what each one means for the teams you lead.
1. The engagement crisis is a management problem
Gallup’s flagship annual study delivered a sobering headline: global employee engagement fell to just 20% in 2025, its lowest level since 2020, carrying an estimated $10 trillion in lost productivity worldwide. But the most actionable finding sits much closer to home. Managers account for roughly 70% of the variance in team engagement, and manager engagement itself slipped year over year. The clear implication is that engagement is built or broken at the team level, not in sweeping company-wide initiatives.
Why it matters: If you make one investment this year, make it in your managers. Their engagement, or disengagement, flows straight through to everyone they lead.
Source: Gallup. State of the Global Workplace 2026 (Research report)
2. The productivity gap is real and AI alone won’t close it
Microsoft’s annual study introduces the “Frontier Firm”: organizations built around hybrid teams of people and AI agents. It captures the central tension of the moment — 53% of leaders say productivity must increase, while 80% of the global workforce report they simply lack the time or energy to do their work. The most instructive finding is that teams using AI outperform both individuals using AI and teams without it. In other words, collaboration, not just tooling, is the real multiplier.
Why it matters: The firms that close the productivity gap will be those that weave AI into how teams work together — not the ones that just hand individuals new tools.
Source: Microsoft. 2025 Work Trend Index Annual Report (Research report)
3. Trust is now a measurable early-warning system
Drawing on more than 10 million workplace interactions across 200-plus organizations, this report reframes trust as something concrete and predictive rather than vague and aspirational. Employees who give peer recognition are trusted far more than those who don’t; recognition frequency forecasts departures an average of 87 days before someone resigns; and teams led by the most recognition-active managers post 35% higher trust scores. Trust, it turns out, leaves a measurable trail.
Why it matters: Recognition and trust aren’t soft extras — they’re leading indicators you can watch to catch attrition months before it lands on your desk.
Source: Happily.ai. The 2026 State of Workplace Trust (Research report)
4. Your leadership bench is under more strain than you think
DDI’s annual outlook maps the forces reshaping leadership in 2026: the rise of human-plus-AI leadership, flatter organizations, climbing burnout and “quiet cracking,” stalled internal mobility, and a renewed premium on human-centered skills. The report warns that leadership pipelines are under real strain — fewer leaders are moving into new roles, burnout is rising, and many organizations remain unprepared for AI-driven change.
Why it matters: A candid look at the pressures on your leadership bench, and a timely prompt to invest in development before the gaps become vacancies.
Source: DDI. Leadership Trends 2026 (Report)
5. The timeless fundamental beneath all of it
In one of TED’s most-watched leadership talks, Sinek argues that great leaders extend a “circle of safety” around their people, and that trust and cooperation — not raw talent — are the bedrock of resilient teams. He borrows the military’s performance-versus-trust framing to make a point that lands with any leader: a trustworthy teammate often beats a brilliant but untrustworthy one. It’s a fitting anchor for this month’s reads, tying the data back to a simple human truth.
Why it matters: A short, shareable reminder that performance follows safety and trust — not the other way around.
Watch it: Simon Sinek. “Why Good Leaders Make You Feel Safe” (TED Talk)
The thread that ties it together
If one idea runs through this month’s picks, it’s this: the tools and pressures of work keep changing, but teams still rise or fall on trust, clarity, and how well people actually work together. AI raises the stakes; it doesn’t replace the fundamentals.
That’s the work we care about most at Summit Team Building … designing experiences that turn insights like these into habits your teams carry back to the office. If any of this sparked an idea for your own team, we’d love to talk.