The Argentine was heavily linked with a switch to Old Trafford over the summer but is still a Juventus player following the closure of the English transfer window.
Tottenham struck a deal with the Bianconeri to take the forward to north London but in the end failed to land the former Palermo man.
“A lot of players have declined coming to Man Utd in recent years. They've chosen somewhere else," he told the Daily Star.
“But I don't know how Dybala had the audacity to turn them down when he's on the bench at Juventus. He needs to start playing some football.
“Maybe he's thinking: 'I want to be Champions League or I'll sit on the bench. I'd rather do that than play at Man Utd.'
“Well, I'm happy he didn't come, then because you haven't got the right minerals that I want in a Man Utd player!
“I want someone who wants to come and thinks: 'Man Utd need to get back to being a top team, I want to be the catalyst'. That's the type of person you want to come through the door.
“Ole [Gunnar Solskjaer] has gone with younger players. James and Wan-Bissaka are two young, young, young players with huge potential. They're projects."