I only listened to Grant for a few minutes today, but what was interesting to me when he was comparing Sac and OKC, he said one of the biggest differences was that Durant, their best player, is also their hardest working. He followed that by saying Tyreke definitely wasn't the kings hardest working player.
A lot of what Grant says I dismiss. But he would know better than any of us who is the first to practice, and the last to leave, which was exactly how he described Durant. Being around the team and practice facility he would have an idea who's putting in the extra reps, and who isn't.
I'm not making much of this. I think Tyreke does work pretty hard on his game. Apparently there are guys working harder on this roster though.