Thats the reason Rodgers has given hasn't he for having Carra back in the team and Skrtel not getting games? With Carra retiring, I think his wonderful trait will have to be replaced. Especially when players like Kelly and Wisdom will be getting a fair few games at the back, in a system where we'd play a high back line at times and one where our defence from set pieces needs to be shored up. You can see why the likes of Jagielka and Dawson are integral to their teams defences even though they aren't the perfect defensive specimen and have gone through horrible patches of poor form, because of the value they add with the 'leadership' - which is a bit of a blanket term, I agree, like 'dynamic' winger. There's probably specifics to it that Skrtel and/or Agger don't bring to the defence that Rodgers is unhappy with, that Carra does. Which is what his replacement needs to bring in.