Alan Curbishley has lavished praise on Sir Alex Ferguson ahead of West Ham's trip to Old Trafford and backed the Manchester United boss to continue in his job until he has won at least two more Premier League titles.
Ferguson was due to retire in 2002 but changed his mind and has now guided his side to the top of the table with just two games of the season remaining.
"Since United won the Champions League the last time that has also been something which is driving him on.
"The players he has brought into Old Trafford are young and that is what has fuelled his enthusiasm."
However, Ferguson has not earned Curbishley's respect solely through his achievements with United.
The Hammers boss explained: "Sir Alex is the sort of manager who is tremendously busy and occupied, but has always got time to return calls.
"With the League Manager's Association, he sees his role as helping the next generation of managers improve their lot.
"He's not doing it for himself, he is trying to help the managers in the lower leagues who perhaps have contracts that are not worth the paper they're written on try and get the better benefits for the managers, where the lifespan is becoming increasingly short.
"So with all the commitments he has elsewhere, the other managers really appreciate that."