The numbers suggest the opposite is true... he's more effective/efficient as a starter throughout his career... his usage rate goes down, but TS% and other numbers go up.
That's doesnt prove or disprove anything I said.
High fatigue games = 2nd game of a back to back, 3rd game in 4 days, those types of things. I just went off memory, so I could be wrong, but that's the number you would have to find to disprove what I said about Jae.