I think some of the players that are being dismissed on here (Barrett, Maguire-Drew and JCH) have suffered from a lack of regular game time. With a good pre-season and a few games under their belt, then all three could (imo) be among those that step up best into L1, but granted he'll want to freshen things up a little as always nice for a couple of new faces in the squad and they are non-contract. Expect JCH to stay though. Personally I'd keep anyone from this season who is happy. No room for sentiment, but fantastic bond that appears genuine and as long as none of them are derailing that by being unhappy if not in the team etc then I'd retain almost all.
There are a couple of areas that I'd perhaps like to see more competition, but again don't want to change the balance and Jones/Andreu will be like new signings. LB was the biggest concern for me, particularly when Stokes first came back in as looked unfit, but now looks sharp again and the last few games has been immense - so much stronger than Haynes, but perhaps not as quick or as good going forward, although Haynes worries me all the time as a defender. I do think we need another Doyle type leader/enforcer. HE keeps himself incredibly fit but a league higher and a heavy fixture list being a year older, you'd have to question whether he could do it Saturday/Tuesday/Saturday so may need to be more selective with his games.