http://www.calgaryherald.com/sports/Rey ... story.html
Most likely he will stay on the roster, at least for the rest of the season.
list of running backs on the Stamps roster:
tim st. pierre
four non imports. two imports. and we all knwo walter is comming back next year. so im thinking they will cut green, sign walter to a P.R. and keep the rest. cote and st.pierre are more fullback styles, and st.pierre can long snap. that just my guess.