I hate that answer, it's so fucking shallow
fergie made a lot of mistakes towards the end of his career
Well, yes, he did, and we've talked plenty about them before: shit scouting system in place, shit dead wood players bought on a whim filling the ranks, even naming Moyes after him for the hard transitional period that was always going to happen.
Trying to put it on him after this time is just as counterproductive now. Signings done after he left and this past transfer window is proof that it's hardly all on him.