Time may be running out to get something done before the season, and after it, Jackson will have even more leverage than before. With each passing day, it becomes clearer that Patrick Mahomes is going to play Week 1. There is a lot on the plate of rookie head coach Joe Brady already, calling plays on offense and taking on this bigger role, and there is no substitute for talent. And now the new tight ends coach couldn’t make it to training camp without being dismissed for a DUI offense. “They should have fired the head coach and started over,” as one longtime NFL personnel exec.