No sarcasm here. At D3 I want 50+ as a minimum, not average, in the cores for guys I'm starting.
And on stamina...how do you work your fatigue settings? Is he based on minutes or fatigue? B/c if its minutes...he's set too high.
Either way I think its 3 things: 1) a stamina issue, 2) he's pretty average from a rating perspective, and 3) you've played a lot of games on the road where stats can suffer.
I went through some of your box scores and I could barely find a time when he was even in the game when they gave the fatigue updates. And the times he was there, he was orange once and yellow the other time.
I'd dial back his distro, definitely use fatigue for subbing, and try to get him out of your starting lineup. He's just not good enough when he's tired to compete with the front courts you're facing. And he's a turnover machine with 7 BH in at the SF spot in a motion offense.