I liked his running style and I think he could be a good returner some day. But, his technique on returns was very poor. He would take bad angles on the ball and started to muff punts because of it.
The problem is that his regular position is tailback and we have 4 tailbacks right now with Randle hurt and facing possible suspension. He's probably nowhere near where he needs to be in pass pro, so you're basically using him just for punt returns. I wouldn't hate the pickup, but his technique has to improve dramatically in punt returns. Even still, the Cowboys have bigger fish to fry.
YR