How realistic is it that autonomous AI agents can actually replace coordination across multiple teams?

We’re running workflows that require handoffs between our operations team, analytics team, and dev team. Right now it’s mostly manual—someone completes a task, updates a spreadsheet or sends an email, someone else picks it up. It works but it’s slow and prone to mistakes.

I’ve been hearing about autonomous AI teams that can supposedly handle these kinds of multi-step processes end-to-end without human intervention. The idea is that instead of paying people to babysit workflows and coordinate between teams, you have AI agents doing that work.

But I’m skeptical about how much of that is marketing versus how much actually works in practice. If we’re talking about replacing a full FTE or reducing headcount based on automation, I need to understand the limitations. What kinds of tasks can autonomous agents actually handle reliably? Where do they break down? And if something goes wrong, how much supervision do you still need?

Is anyone actually using autonomous AI teams for real cross-team coordination, or is this more of a nice-to-have feature that handles maybe 20% of what you need?