Zeman is arrognt too but still a shit coach, having said that conte is a beast coach and he realised his style will not work with the players and motivation at disposal so he quit. as bitter as one can make it look it seems that his decision was right for the team
conte had just ONE failure is his multi record breaking 3 years at juve and that was not getting past the group stage last year. we had a coach that took del neri's team and made it his own before the new season. from his first match in charge to the 49th he kept us undefeated with the likes of vucinic, matri instead of tevez, players like pepe on whom our formation's life was dependent, marchisio as our most in form player, krasic lol, so we dominated a "shit serie a" but with a shit team (as compared to the team allegri has now)
i love allegri for now since his changes look promising and i hope he continues to excel and surpass conte and our expectations, but he has a long way to go to be considered a better coach than conte