I think one of the issues here is that some of the players who are still in contract are the weakest and the ones that should be moved on .
For example , Smith , Lines , Martin and Warburton . It’s questionable if these are division 2 standard let alone division 1 .
McCormack is a difficult one . He should really only be offered a new contract on a pay per play basis .
Broadly I agree with you and credit for mentioning the elephant in the room - McCormack. I wouldn't offer a renewal as he's the past and we need to back the younger players. He's done a fine job for us but he doesn't last 90 minutes generally and has missed a lot of games.
Curle has been using Smith to replace Oliver when he's started to flag. Is this how it needs to be or is Oliver carrying a minor injury he can manage from game to game and recover from now ? Oliver is certainly pivotal to all we do going forward.
On the evidence of the playoff final I'd favour Marshall over Adams. That's only one game though and Marshall had the considerable advantage of playing against a side that appeared to have lost it's way and mostly only had 10 players on the pitch.
It all depends on the Budget of course. It would be great to keep Wharton, Turnbull, Arnold and Goode together but three of those could well not be here next season (Goode - probably our most marketable asset, Turnbull out of contract and Wharton not ours anyway).
I'd want to keep Hoskins and the younger lads with potential. Harriman is a keeper at the right price as well. Morton would be an excellent signing and delight everyone.
Perhaps Curle has a rabbit or two to pull out of his hat. We are after all a League One side now.