He is the missing link they've been after since Eto'o left. If they managed to buy the CB's they were supposedly after in recent windows, they wouldn't have an Achilles heel.
Miazga is a much better prospect than any of those players. Get a clue.
What makes you so sure?
I haven't seen him play to make a judgement, but I doubt anyone outside of the USA has. YouTube highlight reels aren't "watching someone".