I'll keep Per, sell Gabriel and bring in another CB in 1-2years to replace Per. Per is a leader and has calming influence which he can pass to the younger defenders. Gabriel is a headless chicken and a liability. I know he was eventually exonerated but I still can't forgive him for getting needlessly involved with Costa last season and costing us the game. That was one of our most painful defeats last season and we actually played quite well until the sending off. The home game was equally bad but the chaos was started by Flamini in my opinion. Both defenders can't be relied upon as first choice but happy to keep Per in the background.
Chambers is done imo. He lost his shootout with holding and I can't see a way back for him. He will be 22 next year and can't make the under 21 squad any longer. It's touch and go whether he can make a 25man squad. Another Steve Sidwell who will have a decent career at a mid table club. Shame we paid so much for him.