The Bills have signed 24-year old RB/KR Chad Simpson.  Simpson played in 14 games for the Colts last season in which he carried the ball 15 times for 102 yards (6.8 ypc) with 2 TD runs and he also caught 3 passes for 1 yard (0.3 avg).  Simpson also returned 38 kickoffs for 898 yards (23.6 avg) with 1 TD return last season.  Simpson has now played in 25 games in his 2 years in the NFL appearing in 25 games in which he carried the ball 30 times for 147 yards (4.9 ypc) and he has caught 6 passes for 31 yards (5.2 avg).  Simpson has also returned 53 kickoffs for 1,242 yards (23.4 avg) with 1 TD return in his career thus far.  I think the signing of Simpson will remove the temptation of the Bills to use C.J. Spiller as a kickoff returner.