You guys overrate coaches too much. Give him top defenders, top wingers and a goal scoring machine as a striker and anyone with decent managerial knowledge and some morale boosting skills would take us to the next level. That's been Brazil since... always. Shit managers, talented players.
We get him the top players, i'm talking about game-changers. And you'd Allegri being praised like he was God.
Van Gaal and his Ajax in 94-96, Guardiola's Barcelona... Meh, sure, they had good ideas and came up with good systems but most importantly they had talented fuckers, extremely talented. Give Allegri the tools.