Share this: The NFL free agency period has not yet begun, but the Kansas City Chiefs have already made a splash. The team announced the signing of veteran running back C.J. Spiller on Friday. The 29-year-old back had brief stints with the Seattle Seahawks and New York Jets last season, playing in a total of six games between the two teams. While Spiller is not a marquee signing by any means, the move raised question marks regarding the Chiefs roster. Kansas City already has a plethora of backs, including skilled runners in Spencer Ware and Charcandrick West. With strong depth in the backfield, it is believed that the odd man out could be Jamaal Charles. When healthy, Charles has been one of the premier