I agree that she should start, but not with the "Shoot/score" marching orders she has now. I would rather see her focus on defense, rebounding, disrupting, and putbacks. Stuff like that. Let her take shots when she is into the flow, which could take some time each game.
Caroline is better at organizing the team, obviously, and that is probably a better answer for the starting lineup to win most games. But IMHO we aren't going to win the NC without a big contribution from Stewart. Whatever needs to be done to maximize the chances of that happening needs to begin now. I think that means putting her on the floor for extended minutes and getting her back in the swing, mistakes and hair-pulling moments be damned.