Our midfield problems the last few years have nothing to do with the Glazer or SAF being stubborn and everything to do with bad luck.
We signed Hargreaves only for to turn out to be extremely injury prone - Should have reacted to that at some stage during the century of him not getting fit
We signed Anderson, he turned out to be a bust - again, should have seen the signs sooner
We had a fee accepted for Ramsey only for him to turn us down - someone doesn't come, find someone else
Fletcher comes to down with a career threatening illness - he was never a world beater, good player tho
We signed Pogba only for him to leave just before breaking into the first team - had a player needing games and confidence and chose to not show faith in him
That's just a good ol' fashion run of bad luck. Even if just two of those things went our way, say Ramsey signing and Pogba staying or Fletcher not getting sick and Pogba staying we would've been fine in midfield.