Jamie Squire/Getty Images Buffalo Bills running back James Cook remains hopeful he can secure a new deal worth at least $15 million annually. Buffalo Bills running back James Cook may be pushing for a new contract, but he’s willing to go only so far to express his desires. So, while he skipped all of the team’s voluntary offseason workouts, the two-time Pro Bowler was back on the field for this week’s mandatory minicamp. The financial ramifications of sitting out were too great to ignore.