Bills running back Fred Jackson (concussion) and defensive end Chris Kelsay are improving, according to coach Chan Gailey. "We hope to have them both next Wednesday for practice," Gailey said. "That is not set in concrete, but we hope to have both of them." SOURCE: BuffaloBills.comFantasy Spin:Jackson missed Buffalo's game versus Miami Thursday night, just four days after suffering a concussion. C.J. Spiller ran the ball 22 times Thursday, his first 20-carry game this season, and would continue to be a top fantasy back if Jackson had to miss more time.