Giving him the sole focus on the QB and passing game will give him the time to do it right and allow Bowen time to focus on the offense as a whole and how best to exploit the teams we are playing. My biggest gripe with the previous staff was Corn had both responsibilities and the utilization of the running game suffered or when he did focus on running, the QB development and passing game would tank. Its not so much that he couldn't do either job but more that trying to do both made both suffer.