The most interesting decisions will be at the back, not just because of the number of players we have there, but also the contract situations. Based on transfermarkt figures:
expires Jun 2016: Agger, Skrtel and Enrique
expires Jun 2015: Johnson and Toure
Fullbacks:
If these numbers are right, I expect Johnson to be sold in the summer for a small fee (if we're lucky, given his wages), or sign a pre-contract with his next club at the end of this year or beginning of next year, and leave free in the next summer.
I don't think Enrique's contract will be renewed so he might actually be moved out in the summer. Rodgers uses him as he has to, but I somehow think he doesn't really trust him or like how he trains. Carra's comments about Enrique may just be a reflection of how Rodgers regards the Spaniard.
Kelly, I think, is a goner. Either that, or he's going out on loan to show he can play again, and then getting moved out. Flanagan has jumped in front of him in the pecking order, and with a new full back to replace Johnson/Enrique, as well as Wisdom and to a lesser extent, McLaughlin, returning from loans, it's going to be quite a feat if he manages to retain a place in the squad given his fitness issues.
Centrebacks:
Coates is a goner, and as one of Skrtel or Agger will be sold because of the contract situation. I don't think we'll be renewing both; probably one, just to keep an experienced and familiar hand around. I expect Skrtel to be retained and Agger to be sold.
I expect Toure to finish his contract here and retire. Old head in the dressing room for the season; useful when/if we're in Europe next season, both for his experience and relief minutes, given the very young team we have.
It might seem crazy that we would go out and buy another centreback given the number we currently have, but I think that's exactly what we should and will do, with an eye on the future. Remember that Ilori is still only 20, and new to the league when he returns from loan, and Wisdom, while more senior, will still be inexperienced at the CB position in the league (and still only 21). If Agger leaves, a left-sided CB will probably be added. Sama and Sokolik (is he still around even?) aren't good enough, and Lloyd Jones is still just 19 so none of these U-21s will be involved much (if at all) in the next 2 seasons.
TL;DR version - my projections:
2014/2015:
FB: < LB >, Johnson, Flanagan, Wisdom, [ McLaughlin, Smith ]
CB: Skrtel, Sakho, < LCB >, Toure, Ilori, Wisdom
2015/2016:
FB: < LB >, < RB >, Flanagan, Wisdom, McLaughlin, Smith (< RB >: depends on how the young FBs perform)
CB: Skrtel, Sakho, < LCB >, Ilori, Wisdom, [ Jones ]