If you hire people, you could ask or collect other kinds of feedback how your hire has performed (from someone else than themselves directly of course).
I counter this I've never had good feedback, because of people that wanted a solution, but not from me and sometimes I would bring a solution that will cost less overtime.
I have been bitten colleagues and it still hurts. Because they weren't that great with I.T.
I rather show it off what I can do and what I need to work on. Than relying on somebody else. (Again I have been bitten by that.)
