I think that is overvaluing Witten's contributions .Be honest his value the last few yrs was his blocking (and leadership)though that was down as well due to his compromised movement skills. 3-4 yrs ago he was still somewhat of a chain mover who could quickly get to the first line marker (provided it was less then 10 yds) plant and catch anything thrown his way. Last few yrs he was dreadfully slow and provided zero YAC. In my opinion he delayed Jarwin's development by hanging around too long. With that said though he was quietly one of the best to ever play the position and was pure class.