The Spurs are struggling a bit because of Manu. Of course, Horry and Finley haven't stepped up either.
The Key to the series for the Spurs is Manu, if he can't play at his normal high level the Lakers will go right through them.
The Spurs did have a chance early on to establish themselves, but lost game one and were blown out in game two. Now the Lakers have the edge and the momentum, and it's up to the Spurs to challenge them and defend their home-court.
The Spurs have to win this next game or they're done, so I expect them to do so. They still have too much going for them to just roll over.
That's a pretty good strategy for the Spurs to employ, by W.O.W. The more Kobe shoots the better for the Spurs, even if he hits them it takes the other Lakers out of the game. Unfortunately, I don't think it will work, since Kobe seems determined to be an assist man as much as a scorer.