For the past two weeks, the Bills have worked on new RB rotation for both Spiller and Jackson. Initially the coaches were subbing in the Duo after each series. Spiller and Jackson were not fans of the initial move and stated they were not able to get into a rhythm on the field. The two came up with every two series to switch out unless the other has a big running play. Spiller and Jackson are looking out for each other in a very competitive area. After the long run towards the end zone in this past game, that Spiller had, He stated he came out and let Jackson punch it in. He stated that it is out keeping everyone fresh and looking out for each other. This seemed to work in the game against the Cardinals, but they started it against the 49ers, in which there was limited offense all together. This is going to be an interesting aspect of the Bills offense to watch and to see how it develops. It is obvious that there will be plays in which Spiller or Jackson will be on the field in certain situations as well as on the field together at times.