I don't think Jack 'tightens up.' If he biffed free throws, I might think that. But the guy is as cool as a cucumber at the line. I think he just makes bad plays. If anything, I think most of his bad plays are because he is trying to play faster than he is capable of. And I think he has to play as fast as he can, like on his drives to the basket, in order to be successful.
Jack and his attempts to play fast are a double-edged sword. He just doesn't have the finesse of someone like Brandon Roy, who can get pretty much wherever he wants to go, seemingly in slow motion. So he plays fast and hard. Sometimes that effort results in a good play; often it results in a bad one.
Jarrett Jack: He's All Heart!
I do think he'll have a fine NBA career as a solid backup. I think there are teams that will trade for him, and systems where he can be successful.
I admit I wish him gone, but I do wish him well.
