Harry Redknapp felt the experiment of playing a new 5-3-2 system worked in the first half of Saturday's goalless draw at Everton.
Vedran Corluka, Ledley King and Jonathan Woodgate lined-up in central defence with Alan Hutton and Gareth Bale taking on wing-back roles.
Tom Huddlestone came into a three-man midfield with Luka Modric floating in behind strikers Robbie Keane and Jermain Defoe.
It's the first time Harry has tried the system and defensively it worked well as the home side rarely threatened.
"We worked on it for a few days last week and I thought let's try something different and see how it works.
"In the first half I thought it worked well, we passed the ball well, kept the ball, kept changing play and moved them around. We did everything I wanted to do within that system.
"In the second half Everton changed, pushed up on us and we couldn't play from the back like we did in the first half.
"In the end a draw was a fair result as neither keeper had a world-class save to make.
"I just felt it was a good opportunity to change the system because we are perfectly set-up to play that way.
"The two full-backs are both attacking full-backs and I felt they would make wing-backs - Gareth Bale loves to get forward and so does Alan Hutton, so it was worth a try."