I don't think managers like guardiola, ancelloti etc are shrinking violets, i expect they demand the top performance out of players, they quite clearly have presence and i am not going to disagree with you that that is something we need.
But i don't think they are necessarily abrasive and that was what i was disagreeing with - your post read to me that basically all we need is a manager to get stuck in to the players, give them a kick up the backside etc, which i think is far too simplistic.
As regards Pearson as violent, hes held down and choked an opposition player on the touchline during the game, told a fan to **** off and die, and repeatedly been abusive to reporters in press conferences. You are right i have a personal dislike, but i think its pretty well founded.