At least four times in the last two games, the UM QB has hard-counted the opposing defense, recognized the offsides, snapped the ball, and then aired it out on the free play. (none of the free plays have been successful, but one has generated a PI call) I can't recall four times this has happened in the last two years, even though it should with the way opposing defenses have played the snap count so aggresively.
Obviously Borges is not against audibles as they've been called more than a few times in the last two games.
In the last two games, snaps have regularly been at 10+ seconds left on the play clock, often the offense is at the line with 17+ seconds on the play clock. There's regularly been time for the QB to survey the defense, call an audible, hard count, etc. Getting the play off on time has been a consistent problem over the last two seasons.
Devin has very good pocket presence, knowing when to move, step up, and when to use his legs as his last checkdown. He's still not always on the money with tough throws and may be looking receivers down a little too much given how well safeties have come to his throws. He also waits a little too long, giving those safeties time to get over. These, however, are generally hallmarks of young QBs and will likely improve with experience.
Devin is the better QB, which is not the same as saying he's the better player. Nor is it the same as saying that he should start over a healthy Denard. And it certainly isn't saying that he was ready to play at the beginning of the season. It's a statement about executing the offense and the details of QB play. Some of the difference is related to Borges: Denard is a running/spread QB and Devin is a true, dual threat QB. Borges's offensive style is much better suited to the latter.
Before you moderate, know that if i was Hoke, Denard would start if he's healthy enough to do so.