It's hard to say whether Jonathan Stewart would've been the starter for
opening day, but that's ruled out. Deangelo Williams will start;
Stewart will enter the season on the PUP list.
PUP entrants are eligible if they were hurt before the start of the
year; they're eligible to start practicing week 7, can be elevated (at
the cost of another guy's roster spot) at that point, though they
technically can string things out until week 10.
Williams finished the 2012 season strong after being demoted for
Stewart; he rushed for over 200 yards against the Saints in the season
finale. Mike Tolbert, as well, finished strong with 5 TD over the final
four games of the year. Both will have an increased workload, and
Kenjon Barner might get a few more touches. It's hard to say whether
the team will keep Tauren Poole as temporary insurance, or if they'll
stash an extra lineman for a few weeks.