Although Pop could be a reason for some free agents, I doubt if he's the main reason. If anything, I think he's more on the positive side as to why a free agent would sign here. I remember Ernie Johnson, after running a piece on Pop, going around the table and asking Shaq, Kenny and Charles if they would have loved to play for Pop. Each responded with a resounding yes. Now, do I believe them? In the moment, as they sat in the studio retired, yes.
BUT I doubt, at the peak of their careers, Shaq or Charles would have liked to play for Pop, not so much the coach/man, but the system. I seriously doubt they would be able to check their egos or as Pop likes to say "get over themselves".