Even when he was a phenom RB recruit in high school at Midland Lee winning State Titles, he was never really considered a spectacular athlete. I actually remember a lot of people saying he was going to be a bust on the college level, because many people considered him to be an overachiever. He was most commonly compared to Emmitt, because he was production machine even though he didn't have great speed, measurables or flair. But he was the same way at UT ... he wasn't going to be confused with LT or Barry Sanders as far as highlight reel runs, but he was just super productive. He had great balance and vision and instincts and was a great inside runner because he wasn't afraid to stick his nose in there. He was perfect for the style of football the Bears wanted to play.
But a RB who makes his living between the tackles ... if you lose even a little of your your passion for the game and the taste of contact, you're done. You got to be fearless. You're not going to outrun or juke anyone. That's what made Emmitt so great .. he was this little 5'9" 205 lbs. RB who was at his best running between the tackles because he was just a warrior and afraid of nothing but failure. He loved football, and it showed the way he just couldn't give up the game at the end. I think Benson got his rookie contract that made him set for life financially and he got popped once really good in his rookie year by a 250 lbs. NFL linebacker and decided this wasn't very much fun anymore. It was all over from there.