Mullen - FItzgerald
I have a young son who plays soccer. He is currently playing for a coach who is a yeller, my son is frustrated because he says he can't do anything on the field with his coach constantly yelling to pass it, shoot it, move here, move there, etc. I told my son that what he is learning now is how to block out distractions and focus on what he needs to do. Its not happening fast but he is learning.
What Mullen says about Fitzgerald is similar, he is not yet to the point where he has absorbed the coaching and able to see the defense and make the correct reads. He is still in thinking about what Mullen has said while he is playing instead of reacting to what the defense is 'telling him'. It sounds like Mullen is seeing signs the Fitzgerald is close.
That said, I think Mullen needs to make sure that he is putting in the game plan that is most comfortable for Fitzgerald to run. Are there some reads that he is better at making than others? He is too good of a runner to not find a few plays to get him in better position to run. In the passing game, I think he should have a 2 read sequence then take-off. If pressured, his instruction should be to tuck & run. At this stage in his career, and with our O-Line, we don't want him trying to get to a 3rd or 4th read. He will be more effective more times than not by using his legs. I saw several times in the BYU game where he had 5 - 10 yards easily on a scramble but he chose to pass instead and more often than not he threw inaccurate and had an incompletion. It will help our O-Line issues as well if they don't have to hold blocks as long and will neutralize (to some degree) the pass rush if they have to be more conscientious of the Fitzgerald running.