SANTA CLARA — The 2018 Seattle Seahawks are developing — or eroding — much like the 2015 49ers.
An offseason exodus that started with widespread coaching-staff changes is being followed by the departures of star players who keyed a five-year playoff run and back-to-back Super Bowl appearances.
Shortly after Wednesday’s reports of cornerback Richard Sherman’s expected exit from the Seahawks, defensive end Michael Bennett got traded to the Philadelphia Eagles, ESPN reported. The future of other Seahawks mainstays and 49ers archenemies also are in doubt, such as safety Kam Chancellor and defensive end Cliff Avril, who sustained career-threatening neck injuries last season.