And United legend Rooney believes the lack of manager stability has played a role in Pogba's inconsistent six-year spell with the Red Devils.
"I think it's got to a point where it's probably better for him to move on. If Paul is honest with himself, he probably hasn't had the impact he'd have liked since he returned to Manchester United," Rooney said on Sky Sports.
"I watch him for France and he's a completely different player. The ability, vision and control of the game is always there for France. It hasn't quite worked at United for him, and there's a few players they need to let go of.
"There hasn't been a settled manager there since Sir Alex Ferguson so I think whoever comes in, they need to give them time to build relationships with players.
"They were going through a transition period [under Ole Gunnar Solskjaer] and it didn't work. It's obvious it didn't work with Ole in the end or with the manager now who's come in, so I think Pochettino is a top manager. He knows how to work with top-class players but also with young players.
"They need to get that blend right as they can't afford to fail again."
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