Yeah, Boateng's "long balls" now aren't so much long balls in the sense of hit and hope; he's just bloody brilliant at those passes.
There was one game in a German cup match, though, that things weren't going well for Bayern (this was when Schweinsteiger was still there) and the match just turned into a scrappy fight, which, at the time, shocked me as this was Pep we were talking about, but it seemed he realised this wasn't the game for his style and opted for a more direct, long ball apporach which I believe won them the game in the end. I remember looking into the Bundesliga thread after the game with some Bayern fans happy that despite the lovely football they were playing under Guardiola, it was nice to see they could still win those scrappy games with some fight.