This is a often repeated lie that's increasingly grating in this thread. It's nonsense.
Raiola gets his players a move when they want to move. If they don't want to move they will stay put. Verratti has been at PSG for nearly 10 years. Nedved never moved from Juventus. 5 years since Donnarumma signed with Raiola and the world said he would be gone in a year, he's still there, he's got no interest in leaving.
Pogba's not going anywhere soon heading into his 6th year at United.
Raiola gets onto young players heading to the top and he knows how to get them a few good stepping stones on the way. Once they're at the top, at a club they like, they aren't going anywhere.