I'd rather have more of a sure thing than just "he plays great defense and runs fast." There's guys out there that they can pay a fraction of the price that can play defense and run fast. I get you are paying for the potential in the bat, but it's kinda silly to cite defense and speed as reasons you want him here when others can do that.
Edit: that said, I don't think he signs here and goes somewhere where he will play CF while he tries to rebuild value with the bat.