So Tim refuses to sit and James hits that three instead of missing or the ball still bounces to Ray and he still makes the jumper because someone was too slow to cover.
Now you're going into OT and the coach knows you're no longer with him. Great idea.
Win or lose, the Spurs are a team, and Tim gets on just as anyone else. If it wasn't like that, the Spurs would be the Knicks or some other self absorbed franchise where players kill coaches. If it were like that, players like Green and Neal would never find a home because players like Duncan would threaten to quit if they didn't get their friend from another team signed up. If it were like that the Spurs wouldn't be close to the Finals because they would always have better ideas than their coach has, and they would just go out there and leave a huge garbage ball turd on the floor like a lot of East coast teams do, or they would be the Lakers who have 10lbs of in a 5lb bag when it comes to talent but no direction because everyone on the team knows more than the coach and so they cannot be coached by their existing coach. (the 4th coach in 3 years btw).
Tim's apparent weakness is actually his strength, and it's that he doesn't give a what you think about him.