Former Manchester United midfielder Paul Scholes has claimed that Harry Redknapp lost his energy and belief at Queens Park Rangers.
The 67-year-old resigned from his position as manager of the Premier League strugglers on Wednesday after citing an immediate need for knee surgery.
"There are not many old-school managers left now Harry Redknapp has quit Queens Park Rangers. He always struck me as a great motivator who gave players confidence," Scholes told The Independent.
"The energy and belief that he usually had didn't seem to be there this time. QPR's obvious problem this season has been their away form of played 11, lost 11.
"At United we never used to change our style much away from home. The aim was always to score goals and dominate the match. Obviously, when a team is further down the table that is not always possible. In QPR's situation I just don't know why they haven't tried harder to shut up shop and keep a clean sheet."
Former Tottenham Hotspur boss Tim Sherwood is the bookmakers' favourite to succeed Redknapp.