I want to believe that Pearson can turn this club around but right now I'm not so sure, even with so many out of contract he doesn't have a lot to work with and so much to build.
My personal opinion is that Kalas needs to stay but needs a leader of a CB next to him. Kalas has shown he can be influential and has the ability but I still feel he's what I call a "second CB" and the best example I can think of is when Man Utd had Pallister and Bruce, both were good CB's but without Pallister by his side Bruce was piss poor, Pallister wasn't necessarily the better of the two players but he led the back line and because he was so good at leading Bruce appeared to play far far better with him. This is what Kalas is missing IMO, a player to keep him in check and to give him some confidence if he's underperforming, the second Kalas' head goes down that back line suffers because no-one else will lead.
There is a lot of talk of getting rid of Wells but for me this is just another case of blaming the wrong player, just look at the stats of out games:
Millwall - 4 shots, Luton - 10 shots, Wycombe - 9 shots, Sheff Weds - 5 shots, Nottingham Forest - 6 shots. This may seem like a lot at a glance but if you look at the opponents shots against us in the same games (M - 20, L - 14, W - 23, SW - 20, NF - 16) we've been massively ineffective in creating chances, even more so we've been awful at creating good chances. I've said it so many times, Wells has the ability to score a lot of goals at this level, the issue is we have no players who compliment what he does, Wells makes runs and gets in dangerous situations off of attacking passes and therein lays our issue, no-one is playing those passes, we're one dimensional going forward, and we have nothing when going through the middle. Brownhill was massively underrated here by many of our fans but this is what he brought, he would go forward at defences and play passes through the middle rather than going to the side or trying to play a fast counter attack that the opposition already knows is our only go to. I think if Pearson can keep Wells and sign the right man to play behind him who will play forward passing balls through the middle you'll see a completely different player, especially if we stop playing him with players out of position going forward.
All in all we still have some players we can get as lot out of who are currently being slated and all they need are the right signings around them. Personally I'd be looking to the youth to build the squad around going forward, allow Massengo to play the role he's best suited to and bring in players around him to support him, Kalas should be in a back 2 with a leading CB, we shouldn't be playing 5-3-2/3-5-2, that's a formation for a team with dynamic wing backs which are very hard to come by, get back to a back 4, Kalas, leading CB, Dasilva at left back with a left sided midfielder who can rotate with him to give us that dangerous left sided attack and a whole new right side. Either Joe Williams , if he can stay fit, or a new bigger, stronger ball winning midfielder in the middle too, hell we need at least two ball winning midfielders in a squad so that is a must.
Pearson has so much to do, not only does he need to build a new squad, he needs to help fix the injury issues by changing backroom staff, he needs to instil confidence back into the players who are still here come next season as well as create a team atmosphere with the new players who come in. I think turning this club into what it needs to be will be a three season job minimum project, probably why Pearson has been given a three year contract and I think next season will still be a part of the rebuilding process with many ups and downs.