0.68 PPP is just a ridiculous defensive efficiency.
The shooting wasn't great, but a PPP of 1.01 on the road, especially when you put forth that kind of defensive effort, is pretty good. I'm not saying we played great basketball, but the numbers overall are solid. We missed shots and had ugly moments, but its hardly fair to call the offense a trainwreck.
kenpom's efficiency numbers have adjustments for various things compared to the raw formulas I use.