The "objective facts" I was referring to were the games I've seen the Celtics play. I don't know the defensive efficiency numbers of the team so I'd be glad to see it, and it would probably make me change my mind but still, from what I've seen this year of the C's it seems that they are pretty much lacking focus and heart, which explain their laziness sometimes on the defensive end. That's why you can't talk of a regression, a regression is the inability to do something that you were able to do before. Are the C's unable to defend as well as last year (or just defend very well)? No, they are just lacking the focus and commitment to do so for 48 minutes.