the Spurs organization must admit that they have defensive weakness on bowen (age) and bonner (slow slide).
Duncan and Parker were not enough against the fully well-revamped Mavs.
I also realized how serious are Duncan's sore knees, his strength on low-post plays are gone with those one-leg motion. Thats why he's just the number two option after Tony Parker.
Defensively the Spurs are confused, Physically the Spurs don't have it this season.
In order to win the playoffs, they must acquire healthy legs first, and the rest will follow. But time is not on their side. Not when you are inside the 3-1 hole of the first round.