The Buffalo Bills have officially parted ways with Rick Dennison after one season. This move seemed inevitable and one that really shows that General Manager Brandon Beane and Head Coach Sean McDermott are not going to tolerate mediocrity. While the offense did lack weapons to fully operate an efficient passing attack, one would have expected Dennison to at the very least command a top-ten rushing offense considering his lineage, the talent at the position in LeSean McCoy, and the team’s recent domination in that department. Instead, the outside zone run game failed the first quarter of the season, which prompted the staff to incorporate more gap/man schemes around week four, and even more during their week six bye. But the lack of practice time spent repping the running game really showed in their inability to adjust to defenses. This aspect often goes unnoticed. In prior years, the staff spent an enormous amount of time repping the run game and the multitude of concepts and line calls. The run game was what they hung their hat on. That wasn’t the case with Dennison. His run game was, generally speaking, more simple and relied on defenders to lose their discipline in order…