I think his career in AZ is most likely over, but not sure why most posters are so hard on the guy... his body is just not built to be a feature back.
I will forever remember his sweep run for the TD against the Seahawks that sealed our win in Seattle (the Drew dance play). If he were our #1 option right now at RB and he came out and said this, sure, we all have a right to be mad. But since his days are most likely over, and we're spoiled at RB with the Johnson's, I'll choose to remember the good he brought in his first year or two. It's like parting on good terms with an ex that treated you decently but the two weren't compatible at the end... Oh well, just my two cents.