David Moyes admits that he will have to work hard to prove to Manchester United’s players that he is up to the task of managing them.

The former Everton boss has taken over from Alex Ferguson at Old Trafford, and carries a smidgen of the gravitas his fellow Scot did.

Only time and success will bestow upon Moyes the kind of aura Fergie developed during his years at the helm of the Red Devils, and Moyes acknowledges he faces a fight to gain a similar footing in the dressing room.

He also accepts that his movements in the transfer market may ultimately be the sword he lives or dies by as United manager.

"You have to earn your stars when dealing with players," Moyes said, according to the Daily Mirror.

"It's up to you to show what you've got.”

"You have to keep your eye on what the industry is doing - what's new," he added, addressing his thinking about how to strengthen United in the transfer market.

"And your recruiting as a manager can determine whether you keep your job.”

But Moyes does not think his ability to succeed at United will be down to him alone. And he has challenged the staff and players at the club to work as hard as he will.

"If you want to work for me you need to be able to work seven days a week. I need to know my staff will give me that effort,” he said.

"Discipline has to come from within for players. And I'm a great believer in giving young players opportunities.

"Developing players mentally is very important, but it needs to fit with what the players want."