Chip Kelly, the agent of change, seized power in January then gutted a team that, in 2014, won 10 games and finished a whisker behind a wild-card spot; gutted it to the degree that more than 45 percent of the starting lineup will be new this season.
That's 10 of the top 22 players. Eight of those 10 players were part of the 10-win playoff team in 2013, Kelly's first season.
The number could grow to be higher than 10. Nothing guarantees that extraordinary blockers Riley Cooper and Brent Celek will retain their starting jobs, considering their diminished production levels.