Inconsistency is a symptom that shows the system as a whole is not solid.

In today's football world, there is a system in place for every player at every level. This begins with scouting, recruiting, closing the deal, on boarding and orientation, training, nutrition, study, education, development, and 100 other categories from the towel boy to the AD. The off-season is a process all its own, as well as bye weeks. At this point in ANY team's season, the damage is mostly done by failures in some or many parts of the process. A "Head Coach" of a University is not just a coach, but is the CEO of a multi-faceted industry. He can make adjustments week-to-week, but to "fix the problems" is an examination of the whole system from top to bottom.

On another note, the days of one team dominating year in and year out are over as many fans in their 50s experienced.