The standard of the tournament is THE standard; you can't detract from the achievement of winning the fuckin' tournament!
It detracts from your otherwise cogent anti-Mancini stance to damn him with even fainter praise on the basis that, even though he was the the very best of the tournament, he wasn't really that good, because the others - including Ronaldo, KDB, multiple great Frenchmen - were crap. They weren't. There were several great matches.
That argument, with all due respect my friend, is just bollox. And Italy dumped Belgium ( No.1 team in the world), Spain and England, in the end!
You win the world cup, and the next best is the Euro's. Mancini won it from a terrible position - going behind to England's dream start of an early goal. And, without possibly his most influential player who snapped his achilles tendon in a previous game.
A lot of us with no agenda against him, and most neutrals I believe, will say, "Wow! That was a great achievement" irrespective of any historic shit, or rumours of his methods, at City.