Sanchez and Falter are making life easier for DD.
Sanchez was consistently hitting 93-94, which is fine for a LH pitcher, slider was decent, same with changeup. Needs to refine those secondary pitches, but there's enough to work with that incremental improvements could have him as a rotation candidate next season.
So if you resign Thor, have Falter and Sanchez as your #5/#6, with McGarry, Abel and Painter in AA/AAA to start the season, you're not in bad shape. If Eflin can return for one season, that buys time for the young pitchers.
Miller and Morales are BP options.