Where do you hire telecom relationship mgrs?

At the risk of running afoul (moderators pls delete if inappropriate) - I’d like to ask the group as a whole where you go these days to find experienced enterprise telecom relationship managers/salespeople? I’m talking about the 1-2% of the pool that bring their own book, have existing relationships, and perform to high 6 to 7 figures.

Where do find, or have you found, the people you’d never let go?

This can be a resource for all of us, though I should disclose that I do own a telecom company (see sig). However, after asking several other telecoms where they hire people, and getting “we don’t know” - I thought I’d put it to the entire list.