Why do you think he hasn't? What did Foye/Carroll do in training camp to earn minutes? Burks out played both guys in training camp. He should be playing over Foye because he has outplayed him, he has a year experience in the Jazz system and is part of Jazz future.
Where is your proof that he outplayed them in camp? Where you there?
I want Burks to play. Very much so. But maybe, just maybe there is a legit reason he isnt.