Really? Wenger doesn't make the top 10? I know you're a Utd fan but seriously..
OK, he's not won anything for 5 years, and OK he moans a fair bit, and OK he won't give in to public pressure and buy a strong CB but he remains the only manager (as far as I know) in England to lead a team unbeaten for 49 games - A season and a half unbeaten + plenty of trophies and beautiful football + a reputation for developing top young players and getting the best out of them, but Pep Guardiola who has Lionel Messi, Xavi, Iniesta, (now) Villa and a ridiculous amount of money to spend gets #2 for winning a league it's difficult not to with those players.