I want to second what's being said here. High performers can often escape a manager's attention because the manager has limited time and needs to push weaker contibutors forward with that attention (or risk spending even more time hiring).
Yes, and the high performer can be helpful in these situations and help the person/team who's having trouble pulling through, taking that off the plate of the manager and enabling them to do other things.
Thanks a lot. I hope so. But it doesn't look like. Lets see how it goes.