Definitely wasn't blaming Nomura for the XIII games, and I think you're right that management is probably the biggest problem at all. I think Ito has the capacity to make a great game, but no clue if he could pull it off given the state of the place in general.
But I can definitely blame Nomura for a decade of characters with stupid costumes made out of belts and zippers and the utter mess that passes for a plot in the Kingdom Hearts series :P