You blame Ole? I'm not quite sure how much to blame he is there.
Mata: we've been systematically extending peripheral players for years. The club, not the manager.
Pogba: the writing has been on the wall for two years now but we've tried to stay on the "preserve value/brand asset" track. If anything, it quite clearly hampered him because he couldn't plan or execute anything with a view to life/team without Pogba but, instead, had to do anything conducive to him signing on, which he was never going to do until the very end -if that- as he had everything going for him/Raiola.
Matic: see Pogba uncertainty. Can't go and sign Paul's replacement, nor the right partner for him. You don't really know for a fact what your midfield needs because it is pretty contingent on the two season Pogba-sized question mark. So you bide that time relying on a former quality player that has lost his legs completely.
Greenwood: clearly not on Ole. We should have gone for our future CF last Summer, with Cavani only staying as a backup/late sub option. Not rotation, backup. We got Cristiano instead, which was absolute madness, only made more obvious and noticeable once our most promising youngster since Cristiano removed himself from the equation.
Lingard he probably should have sold. Martial was quite clearly out of favour, but not sold either. Those I do think was his call, not the club's.
Thing is, I don't think the manager has had that much authority on who actually gets signed on, so not surprised they are averse to discarding anyone and that's where I think the club contemplates the manager's wishes more. Result, bloated squads conforming dysfunctional First XIs.
Not an Ole keyboard warrior or anything, just think we are deluding ourselves if we think that will change with Ole gone. If it does, it will be because this new "consultant in the background" stuff ends up working. I'm hopeful, but... it's the hope that kills you.