The Patriots are heading into an offseason that already projects to have significant changes to their coaching staff, per a team release about an offensive coordinator search last week.
Although a fresh perspective is needed offensively from a coaching standpoint, the nature of the NFL's roster-building process is that New England will also have significant personnel turnover. In most cases, that'll be a step forward for a team still deficient in certain key areas.
Due to successful drafting and adding reliable veterans in free agency two offseasons ago, the Pats are in a much better place from a roster talent perspective.