I wonder how are we going to keep in the same team Carragher, agger, skrtl, Sotiros, wilson, ayala and kelly? maybe in 2-3 years time Carra and sotiros will have to stay on the bench but the other 5 are all worthy of being starters. And the problem with selling agger or skrtel is that if the one that remains get injurred, we are left with inexperienced CB and two very old ones... Headache
Kelly is currently understudy to Johnson at RB (although after the weekend and given Johnsons form this season, he may be pushing for another start soon!)
However at CB, he has 4 players ahead of him should the first choices get injured. Therefore at the moment I think his immediate future here lies at RB before moving into the center later in his career, like Carragher.
Regardless of Agger's ability he certainly seems to have serious injury worries. He hasn't had a 6month period of fitness for us yet, has he? Plus I'd like to see Carra take a step back. Against Chelsea where we can't play a high line and will be under pressure and without the ball most of the game, it is perfect for him. However games like Blackpool at home he seriously hinders our game.
Before the end of this season, I'd like to see either Wilson and Ayala (not together!) start getting games for the first team this season with the hope one of them shows enough to push for a starting place next season. Kyrgiakos & Carragher would play the Hyypia role of acting as mentor for them whilst playing in high pressure games against stronger opposition. That way should an injury crisis strike central defence, your kids aren't so inexperienced and your old pros now that they are being well rested, will be ready to step in.