He undoubtedly elevated already very god sides like city and barca, i dont think he improved bayern personally and i also have this feeling he hasnt really ever built anythingWinning the league , 3 times whilst being outspent by in no particular order, rs,Spurs,Chelsea and Man Utd is just decent is it.
Winning the league up against Tapie's corrupt Marseille is just decent is it.
Fergie is in a class of his own , Guardiola is an extraordinary manager but you cannot look at his success and not wonder if he could do it without a Messi or the biggest transfer budget in every league he goes to.
His teams are amazing and play some of the best football but his failure to win the CL without Messi,Xavi and Iniesta will blot his copy ....till he does.....if he does.