C'mon,you and I know why your comparing him to Alstott. Anyway Mike ran a 4.66, 4.67 forty which is significantly lower than a 4.60 ( yes it is). Alstott Also was 6'1 248 lbs,,,,,,Zenner 5'9 223lbs. Gurley also has an upright running style so did Chris Warren.
Not a fair comparison IMO. If Zenner was 2inches taller and 20 lbs heavier than maybe. Zenner might not even appreciate the comparison simply for the fact that type of RB is dead in the NFL.