None of them were 'from' Chelsea though. Hadn't they all been released and signed as free agents? Bridcutt has been on trails at other places before we got him.
Okay, my point is I expect he used his contacts at Chelsea for recommendations and/or to help the deals go through.
Regardless of specific examples, though, I don't expect any of us would complain if suddenly we signed an incredible player thanks to Gus's 'Uncle Pedro' who manages Montevideo United.