“I was speaking to Tim Sherwood a few weeks ago and he said the biggest problem at Aston Villa was that the players were paralysed by fear,” the former Liverpool and Tottenham Hotspur midfielder wrote in The Daily Mail.
Sherwood was appointed the Villa manager in the middle of February following the dismissal of Paul Lambert.
The former Tottenham manager lost his first two games in charge of the Villans, but he has won all of his last three matches.
Under Sherwood, Villa have defeated rivals West Bromwich Albion twice and have progressed to the semi-finals of the FA Cup.
The Villans hammered Sunderland 4-0 at the Stadium of Light in the Premier League on Saturday, and confidence is now high in the Villa camp.
Sherwood had a similar effect at Tottenham when he succeeded Andre Villas-Boas in December 2013.
Many will question the 46-year-old's way of handling things and his willingness to publicly criticise players, but he seems to be getting the job done at Villa at the moment.
The Villans are still in danger of going down to the Championship, but they now have a better chance of avoiding relegation than they had just over a month ago.
Villa are currently 16th in the Premier League table with 28 points from 29 matches, three points above the bottom three.