Real dilemma for the future - How can you build a defence if the cornerstone is made of glass?
You can't.
I wouldn't be looking at selling him, I feel w should have him and manage the games he can play in so that we can take advantages of the skills he has and the quality he brings to the team, when available.
But we are at a crossroads now with regards to the CB position, I feel we need to forge a partnership capable of starting games in Agger's absence.
We have Soto, who I believe will activate an option for a further year on his contract this summer, who is erratic and not of a high enough standard.
We have Skrtel, who is capable of being a good defender, who does well alongside Daniel, but is a recipe for disaster when partnered with any of the other CB's we have on our books.
We have Carragher whose legs are gone, whose decision making is becoming increasingly suspect and who derails the desired style of play with his long ball addiction who is on a bumper new contract.
We have Kelly who is a class act, and who has been brilliant at RB (a position I would like to see him stay at next season in fairness) but who I am in the next few years excited to see develop into our first choice CB.
We have Wilson, who has looked good when at CB on the few occasions he has been, but has been mostly deployed on the left to mixed success, and who isn't ready to be relied on week in week out at the heart of defence.
Wilson and Kelly are obviously staying out, Carragher should be relegated to squad player, I would let Soto go but he may be tough to shift, I would keep Agger and would be open to offers re Skrtel (is he on a new deal too?). I think we need at least 1 new CB's ready to start, have Agger there for when he is ready and the promising youngsters in Wilson/Kelly/Ayala, we will have Carragher regardless and look to see what else we do in the window to determine the future of Soto & Skrtel.
Agger is class, but we need to build a defense that can cope without him.