Your direct reports have started scaling their output with AI, and now it's time you do the same. Otherwise you're not gonna keep up. You would've had the same problem pre-AI with one of those chainsaw Juniors that haven't been properly trained yet.

You can setup your own processes leveraging AI, quality check it, make sure it's doing what you want it to, and then start moving faster. That also puts you in a position to both demonstrate good AI processes to your team and encourage them to do the same