Here are some things to chew on:
The Saints are without Sedrick Ellis, and Michael Turner busted out for 150+ because of that fact. However, the Panthers have no real pass threat with Delhomme, so the Saints can key-in on the ground game fairly easily. That, and Stewart is a back-up who mostly steals goal-line carries.
I like him, but I don't love him.
Your other guy, Charles, is facing a run defense that has deteriorated quickly, and gave up 200+ and two scores to Chris Jonson lst week. Charles will also be all by himself, and possesses good speed and athleticism, so he'll do much better than LJ ever did with all those 15+ touches.
I like Charles against the Jags.