Yeah, it's been years since I checked his Juve stats. I should have said: he made Serie A team of the year on multiple occasions, but he never won PotY.
He's mostly performed well for France i the games I've seen him in. He won young player of the tournment in 2014 and followed that up by being named in the team of the tournament 2 years later.
I'm not making excuses for him, I'm as equally disappointed in him as the next United fan, but I don't think his failure is as black and white as many think.
Just think of all the big name/big money signings (relatively speaking) made by our club post-Fergie, and you'll quickly discover that none of them managed to make any real impact. Pogba, Di Maria, Falcao, Bastian (won't attempt his Surname), Miki, Sanchez, Memphis, AWB, Lukaku, Lindelof, Bailly, Maguire, Fred, Martial, the list is near-endless. Varane and Sancho were mediocre last season to put it mildly.
The law of averages suggests at least one of them should have been an outright success. But no, not a single one. It makes no sense. Clearly, something is very wrong at the club, be that bad management, poor coaching or a lack of, no leadership from top to bottom, the wrong managers, etc. Pick your poision, they're all factors to one degree or another.
tldr;
Yes, Pogba failed, but so did every other signing post-Fergie. The only real success is Bruno, and let's be honest, he just had a terrible season too.