The Bills have assured Fred Jackson that he will enter the season as the team's lead running back. Jackson felt disrespected after being bumped to a No. 2 role behind C.J. Spiller in a 24-10 loss at Denver last week. "I didn't know what was going on and I like to be told where I stand and not kind of have to guess about it," he said. "We will see how things pan out." Another concern is Jackson's contract, which he hoped the team will restructure. Jackson feels he's underpaid in entering the third season of a four-year deal worth about $7.5 million.