Winterburn said: "The big question for the summer is will Cesc Fabregas stay and I must admit, I have my doubts.
"Cesc clearly wanted to go last to Barcelona last year, but he is under a long contract at Arsenal and is not the type of player to kick up too much of a fuss. He has too much respect for his manager and club to do that.
"He will always give everything in games, but if he still wants to leave now and go back to Spain then the club will have to think about letting it happen.
"But if he does leave it will give a chance to others, and a chance to maybe alter the style of play in midfield. The current system based on technical ability has been found out in the last few years, and Arsene may look to go in a new direction."