Former-Manchester United defender Gordon McQueen remains unconvinced over the appointment of Louis van Gaal.
Speaking to Goal.com, the ex-Old Trafford star said Van Gaal may "not be suited to managing Manchester United."
Van Gaal was announced as David Moyes's replacement earlier today, and the Dutch boss will join up with his new team following the conclusion of the World Cup in Brazil this summer.
His appointment has been generally well-received, and he stands in stark contrast to Moyes when you compare CVs. Van Gaal has managed some of Europe's biggest clubs, winning trophies in Spain, Holland and Germany.
But McQueen, who made almost 200 league appearances for United over seven years, is not sure he's the right man for the job.
"Van Gaal comes with a terrific CV but I'm not sure he is suited to managing Manchester United," he said.
"A lot will depend on his relationship with Sir Alex Ferguson. Sir Alex has taken a step back but he is still an important person at the club. We knew that David Moyes was the 'Chosen One' but Van Gaal is very much his own man with strong opinions, and if he isn't happy with something, he will take the matter into his own hands.
"To do that job you need to get on with the big hitters and these are two strong characters with their own views on the way forward. Hopefully they will work well together and the fact that he's got the job suggests that it comes with Sir Alex's approval, so we will see."
As well as concerns over Van Gaal's suitability, McQueen believes the Dutchman could have a disruptive effect on the Class of 92 coaching set-up put in place in the wake of Moyes's departure.
Ryan Giggs will stay on as assistant manager under Van Gaal after taking on the job as interim boss for the final games of the season. But there's uncertainty over the future of Paul Scholes, Nicky Butt and Phil Neville, who all worked with Giggs during his spell as temporary manager.
"I don't know if Van Gaal wanted Ryan as his assistant or he was forced to appoint him," continued McQueen. "It might have been a condition but it would be a surprise if that was the case.
"I'm more concerned that he will ditch the back room staff that was there at the end of the season and bring in his own, which might leave Ryan feeling a bit out of the loop."