Nah. I cant disagree more.
He is an awful manager. No one has ever succeeded by building on the base of a bad manager. It effects everything, because you get bad performances from good players. Look at Lukaku ripping it up in Italy or Chris Smalling who has been better than any current United centre back - these are players who would have helped united a lot this season, but Solskjaer will keep turning these good players into poor performers, selling them cheap and replacing them for a massive cost.
And then because of the negative atmosphere st the club the good players they buy for huge fees end up turning bad.
If Pochettino/Klopp/ Pep another top manager took over tomorrow they would finish 4th with no transfers.
You say they had top managers and they didnt do well... that's not really true. Even long past their best, Mourinho finished 2nd, won the Europa and league Cup and LVG won the FA Cup and got them CL football.
Ole will take them to 8th-12th this season, hell get fired and whoever replaces him will be better.
He could be the most decorated manager in the world.
Such is their current condition, it wouldn’t make a blind bit of difference.
They may as well stand by him, let him learn on the job and see what happens.