Four Downs: C.J. Spiller shows his upside

This was supposed to be the season awesome Buffalo Bills running back C.J. Spiller emerged as a legitimate fantasy superstar, a worthy top-10 choice on draft day. After all, Spiller boasts ridiculous quickness, breakaway speed and elusiveness, and he had seemingly outgrown the annoying timeshare with the older Fred Jackson that so frustrated fantasy owners. This was the year. Well, perhaps next year will be the one? In fact, why can't it still happen next year?