Sha didn't trust Dar enough defensively for most of the year. I believe Dar would have been more impactful on the offensive end but Fisher graded out as a much more impactful defender and we all know what Sha values most.
Totally different offensive games too.
Fisher could post up and Dar couldn’t.
Both could shoot a little but not reliably.
Doubtful Dar would have scored more than Fisher.
Dar probably a bit more effective on athletic put-backs and maybe on the break. That’s all.
But can’t run plays for him like you can for Fisher.