You literally have this exactly backwards.
Bravo!
Roberson did not just want to rebound the ball and play D.
Did you even watch the games while he was here??
JAB wanted him to do those things, and those things only - and when he did with good effort, he was wildly effective.
Robey wanted to show he had SF skills, so he’d try to dribble-drive…
And travel 100% of the time.
He’d shoot the occasional midrange J…. And miss.
He’d float around instead of banging down low, and his rebounding #’s would fall off a cliff.
I guess it’s just the way of the world today, that 2 people can look at the same thing, and come to the exact opposite conclusion.
FWIW - JAB and I, and I’d imagine the majority of posters here, are in agreement about Robey.
(Although I’d also agree with the vast majority of posters who thought JAB was unnecessarily nasty to Robey in pressers, and destroyed his confidence)