Don't worry, this isn't a "He's past it thread". The guy is still the best defender we have.
However he's got to remember that defending isn't his only responsibility. He's also partly responsible for us keeping hold of the ball and he failed massively in the part of the game today. Far too many hopeful balls. If there is no option ahead of you, then go back to the keeper and start again.
I know he's never going to be Beckenbauer but he just needs to make sure he doesn't cost us possession too much in these games.