One thing about Thomson, he makes a plan and sticks to it, which was to keep running the platoon for a while. I don't think it's gonna last. Bader should be playing every day and Marsh should be playing every day save for the once a week Kemp or Wilson plays. Marsh is also hitting over .300 since the day he came off the IL in early May. Kepler in theory should be able to take a few starts from Nick but he probably isn't hitting RHP any better than Nick.
Team is winning though, and Bader is having a bit of an outlier offensive season. Twins didn't even sign him to start originally. It will all sort itself out between the time Bohm comes back and roster expansion. I'm not sure they can afford to cut Kepler as far as bench make-up, you can't have a bench of Kemp, Rojas and Wilson so that means either he stays or they bring Crawford up with minimal action. Otherwise: Stevenson?