In general, every team should be trying to improve every area over the winter. Standing still is how you get passed. In the case of the Twins, I don't agree the Twins "have the bump covered." None of Stewart/Gonsalves/Littell should be counted on for a single productive MLB inning. Same for Pineda. They'll all likely get a chance to prove themselves, because a team doesn't just use 5 starters, but they should all be fallback options, not primary ones. I hope the Twins are looking to add, at the TOP of the rotation, at least one starter.