What do you mean he hasn't declined? Dude is fukking AWFFFFFFUL! I've watched him miss wide open layups this year. Dude acts like he has never played basketball before. All you can do is sit there with a face that he is even getting minutes. He lost his mojo baby.
He fell off. It's normal that SOLID NBA players fall off at 32, 33yrs old.
He was always overrated to me anyway.