Yes, I'll give you he had a bad first 2 seasons with the fumbling issues (7 fumbles, 6 of them lost in 29 games). He has, however, improved in that department the last two seasons (3 fumbles, 2 lost in 31 games). Look, no one here is saying he's gonna be the next Larry Czonka or AP, but he has clearly shown he can be a good compliment to another back...Miller in our case. What do you want us to say? He's an awful pickup for the commitment we gave him???
If we were paying him something crazy like 6-7 mill a year for 3+ years, I'd call it a questionable deal, However, a one year, 3 mil tryout isn't exactly bad for a guy that just finished coming off a 1,500 yard and 13 TD season. Yes, he had the benefit of playing on a Peyton Manning led offense, but that's still pretty good for a guy that had to share the ball with the likes of Ball, Hillman, Decker, Welker, J Thomas, D Thomas, Caldwell, etc. He may not be great like those guys you just listed, but he's not chopped liver also. I'm willing to see what he can bring to our offense before calling him just another failed experiment in the Miami Dolphins running back department.
Oh and the fact he put up 220+ yards against the Pats last year couldn't hurt us either.