yeezus
It's OVER 5,000!
3.6 isn't great, but it also isn't terrible. He was also very valuable as a pass catching RB last yr. He has talent obviously. I wouldn't write him off just yet, though clearly this yr has been brutal, but he is not the only high profile RB that has struggled this yr.
3.6 is pretty bad. 2.8 is terrible, though.
He will be at best an average RB. Nothing there that makes him a star.