When one person leaves, a team leaves with them

Many of the most impactful colleagues I work with now lean on AI heavily. Where others use it as a better search box, they have it so woven into how they work that their output compares to a small team's. At the far end, one person is sometimes doing what five or more people used to. So when one of them leaves, you're not down one person. You're down that person and the impact of five colleagues, or six, or however many their way of working was standing in for. The whole team walks out with them, the way a principal investigator's lab tends to follow them to a new university. Then you hire back, and it's hard to know what you'll get. The replacement might work at 1x, or 2x, or 5x. Even a good match will work differently, and arrives with an empty lab to fill. None of this is made simpler by how fast the tools have changed over recent years, and even months. And the work stays behind. That's the part I think we're underestimating. Everything that was built still needs supporting, the…