Here you go:
http://atvs.vg.no/player/index.php?id=15863
Miles Jacobsen (One of the creators of FM): "Chelsea's chief scout admitted in an interview that he's used the database in the past."
Oh and I remembered wrong, it wasn't calls from managers and directors, but a lot of stories about clubs checking a player in FM and then later sent a scout to watch him.
The point still stands though.