Kyle Trask entering "graduate" level QB training - Dan Mullen.

"One of the great things is that we’re on kind of graduate-level stuff with Kyle right now," Mullen said. "I mean, he understands the offense and the reads and all of that. It’s how fast he’s getting to everything, the ability to check and change plays. The ability to extend the game plan where he has automatics that he can get us to, ‘Hey, we like this play against this look.'

"I don’t love to get into three-way or four-way or automatic checks and all of that stuff, it’s real graduate-level stuff in playing the position," Mullen said. "Now he’s managing and leading everybody on the field. That’s a lot of the stuff we’re working on right now with him, because I think with him understanding the offense, he knows where we want to go with the ball, what we’re trying to do on each play and why we’re trying to do it."