Pretty much all the players are in the same boat there.I would reserve my judgement until we see him under a completely different manager, that knows what he is doing and maybe not rushing players at every opportunity to save his shortcomings.
He has been bad this season, i have said it as well, but he was very good the years before. This is not something new, 90% of the caf had him under the top 10 CBs before the season. 2 bad months after the EC and under a rookie manager that rushed him back dont change that, especially when the whole team is falling apart. You guys look for scapegoats all the time. Just relax a bit and look at the bigger picture. You are only as good on here as your last 5 games.
His time at United has been mixed, doubt you'd find that many fans who'd describe it as very good. He's had periods like that, but he's had periods where he's been shocking.