Familiarity is the running theme of the 2020 NFL offseason in Western New York, where the Buffalo Bills will return 18 starters this coming season.
But with the exception of wide receiver Stefon Diggs, even the Bills' biggest additions are already familiar to their 2020 coaching staff.
Cornerback Josh Norman, linebacker A.J. Klein and defensive linemen Mario Addison, Vernon Butler and Bryan Cox Jr. all played for the Carolina Panthers earlier in their careers, adding to the growing list of former Panthers to sign with the Bills.