2. Duke's game plan changed significantly on offense this year. We got away from the high post pick that has been so effective in the past, mostly because this played to neither Paulus nor McRoberts strengths. By the end of the year, our problems weren't on offense, they were on defense.
I see the other criticisms potentially valid, though I might disagree somewhat, but that scarcely rises to the level of "really stupid", don't you think? For example, not using a backdoor cut is a rather minor detail. If a team doesn't run a certain version the Princeton offense, you don't see the backdoor cut as a regular part of the offense. Duke isn't alone in that respect.