The Seattle Seahawks have one of the better overall rosters in the league. They mainly just have it figured out—most positions have a very reliable player starting and don't need much tweaking. That being said, Seattle does have a few players who are in danger of losing their spot on the depth chart.
One of the players most likely to lose his spot from last season is James Carpenter, a pretty average lineman who shoddily manned the left guard position for the Seahawks in 2013.
Carpenter was replaced by Michael Bowie in the divisional round of the playoffs and that is likely who will take over at left guard long-term. Bowie showed flashes of being pretty great last season, while he was unimpressive.
Carpenter isn't the only one on the team who may lose his job, but he is the most likely.