Spurs don't have the potential to be a top 5 defensive team, that's just silly..this was the main problem coming into the season, nothing has changed..
The only way they have any chance is if they play D like they did against LA on a consistent basis, which is with a lot of energy + swarming, but they don't have the focus to do that on a consistent basis, and it's easier vs. teams like LA, since their shooters aren't scary..
Duncan: good defender, but liability vs. fast teams..
McDyess: above average defender..
Bonner: below average defender..
Blair: average post defender, horrible everywhere else..
Splitter: above average defender, but doesn't get PT, partly due to his poor offense..
Manu: average defender, good at picking up steals..
Parker: average defender, good at picking up steals..
Hill: slightly above average defender..
RJ: average defender..
Neal: average defender..
Anderson: showed flashes of being an above average defender..
The defensive talent isn't there to be a legit top 5 defensive team..then you add the "fit", which makes it even worse..
Duncan is the only rim protector, he's no longer good enough to make up for the perimeter D and the secondary big's deficiencies..he can be exploited by certain quick teams, leaving no other rim protector..
None of the Spurs defenders can run through screens properly..
Blair's defensive IQ is extremely low, and he's a starter..
Manu, TP and Hill gamble a lot, they're often out of position..
The Spurs are a pretty good defensive team when it comes to defending slow teams or teams that don't shoot a lot of 3s, and teams that don't run a lot of screens and move the ball too much..
The D has to be better either way, but the Spurs don't match up very well vs. Orlando, Miami and Boston for these reasons IMO..defensively, if they improve like they should(even with their limited ceiling on D), they should still be able to compete with LA/Dallas, hopefully..