He's not really, though, is he?
Celtic are leagues better than everyone from 3rd down in Scotland. Most of the time they will win just by turning up, so Ange's system is irrelevant.
Rodgers got Leicester relegated and himself sacked then goes and wins the league up there. Proof in point.
Spurs are not the best team in England. Not by a long shot. So if anything, compared to the other teams in our league, he's working with worse players.
I suspect he gets found out in the first 10 games next season. Last season he caught teams by surprise as they didn't know what we were doing. That and the fact none of our squad had ever played with him before, so most of them were doing what they did before. As the season wore on, every player got worse and every team we played got wiser.