Sure Kobe is old now and can't bring it 100% on D every possession. But when he has to, he's still the #1 guy I would want guarding the other teams best player in the crucial moments.
He shut down Ty Lawson tonight who is one of the quickest guards in the league. He shut down Westbrook both in the regular season and the post-season 2 years ago. He shut down Wade in the regular season.
Just think about it this way. Your team is up one point and the other teams go-to-guy is a wing player. Who the hell other than Kobe do you want guarding that last second possession?
Thats right. Nobody. Kobe will get another well-deserved All-Defense 1st team selection once again.