I know what you're saying, but your point doesn't really make much sense..
we still had that 7-game stretch where we were winning STRICTLY by our defense..there wasn't a difference at that time with Duncan's help in the frontcourt..it was actually worse at the time, since Thomas was struggling..
Tim's my favorite player, and I'm NOT saying he's lost his ability to be an elite defender..he's already shown he is in stretches this season..the fact is, Duncan has a tendency to take it easy in the regular season, especially defensively..this stretch is no different..he was a different player when we were desperate, earlier in the season..
we are the SAME team as last year, except with more talent..
I highly doubt Fab Oberto was the reason we were ranked 3rd in points allowed in the paint last year, and just 12th this season..if that was the case, Pop has no reason not to play him..
my opinion is that it's a combination of Duncan not giving in the defensive effort that he could(and will in the playoffs), Bowen not playing as many minutes, and lack of effort as a team in general..
I really don't think it has anything to do with a lack of another big man, like many people here seem to believe..why were we 3rd in points allowed in the paint last year? Oberto is NOT a good defensive player, he's average..if his size is the aspect that made a difference, there's no reason for Pop not to play him, and there's no reason that Kurt Thomas can't come in and play his role(Kurt's a much better defensive player)..