Former Nottingham Forest goalkeeper Mark Crossley believes Steve McClaren becoming the club's manager is a "fantastic appointment".
The 50-year-old former England boss succeeded Billy Davies on Monday.
Crossley, who played under McClaren at Middlesbrough, told BBC Radio Nottingham: "He is really excellent. I think it's a fantastic appointment.
"It does take time. He will need at least two years and he will turn it around at that football club."
Crossley, now a goalkeeping coach with Chesterfield, made 393 appearances for Forest after beginning his career at the City Ground as a trainee.
He saved a penalty from Gary Lineker in the 1991 FA Cup final but ended up on the losing side as Tottenham Hotspur beat Forest 2-1 after extra time.
The goalkeeper's 13-year association with Forest ended with a move to Middlesbrough in July 2000.
"Having worked under him at Middlesbrough, he's the type of manager who will get out there on the training ground, get involved, work on tactics and work on how they are going to play on a Saturday and work on the opposition," added Crossley.
"Billy did a great job, two play-offs is excellent, but Forest are too big a club to be a nearly team.
"Forest need to be back there in the Premier League and now with Steve appointed they've got a great chance."
McClaren, who has signed a three-year contract at the City Ground, will be officially unveiled to the media as Forest manager on Thursday morning.
Meanwhile Forest have released young duo Nialle Rodney, 19, and Mark Byrne, 22.