Speaking on BBC MOTD, the former England captain said: "Listen, I think it's been a difficult start of course with results and I think what he's trying to do is. We've seen players going out on loan and I think there's a lot of players who need to leave the football club and I think he's slowly trying to do that.
"Really, his time will start next season. I think you have to find a way to get through this season. The FA Cup is still a chance to win a trophy. I think big changes on and off the pitch at Man Utd and from next season we'll start to see real changes."