Rooney was yesterday named as Derby’s new manager, calling time on his illustrious playing career.
The former England striker has already had a taste of management, taking charge of the Rams following Phillip Cocu’s sacking last year, but the role will be his first permanent job.
Speaking during an event for Sports United Against Dementia, Ferguson said it was important Rooney took the next step in his career.
“He’s England’s top goal-scorer, he’s Manchester United’s top goal-scorer and he’s had a fantastic career as a player,” said Ferguson, who led United to 13 Premier League titles. “It’ll give him a starting point.”
“[But] it’s a results industry and you need to get results. He’ll know that better than anyone. He’s had a good start… and he has knowledge of the game, a presence about him, and I hope he does well.
“It’s a big step for him. He’s quite a wealthy young man now with his career in football, so he probably doesn’t need to go into management to look after his family. But he wants to do it and that’s important.
“There’s no point being a manager because someone asks you to be. He went there as a player-coach, he then became player-manager and now he has the manager’s job and that’s what he wanted. Hopefully he does well.”