3.5 YPC = meh.
3.5 YPC as a rookie on a bad team when that running back is the only real offensive weapon, the defenses are packing the box on a regular basis, and the back was playing injured for part of the season = not so meh.
.892 career OPS = nowhere near meh*.
*unless it comes from a Cub, because then it is the terrible result of failed management, front office conspiracies, and horrible coaching that combine to ruin every player they touch. That 0.892 should be at least 1.892. Maybe 2.892. And if that guy was on a well run team like the Rays or the Dodgers, it would be at least a 6.892. Squared.