I guess an argument could be made for Book but I think Claypool deserves it for his productivity on offense and special teams.
He may be the hardest to replace next year. No one in sight has his combination of size, speed, athletic ability, attitude, intelligence and work ethic. Can Micah Jones step up? Can McKinley get healthy and contribute? Could Tremble move over from tight end? It will be interesting to see how things shake out in 2020.