Every winter Theo and Hoyer talk about pitching contingency planning, wanting depth, being prepared, etc..
The trick is you can only dedicate so many roster spots to pitchers. So you want contingency/flex in-roster; and you want some off-roster help at Iowa.
At present, MM is the only pen/rotation swing guy. Adding another could be helpful.
Flex in the pen, in case a main guy gets hurt or a guy expected to be a main guy goes haywire, that just depends on having depth of guys who are quality or at least anti-awful. Nowhere is "status" more fluid than in pen; we know a guy with a good arm who starts near the back of then pen pitching only in losses or in the 6th inning, can sometimes pitch well and end up getting used extensively in the 7th and 8th to protect leads. Got some work to do there, obviously.
Off-roster, I guess Tseng, perhaps Mills, Zastryzny, or Maples are options guys. (Maybe Maples will be good, others are probably hoping for anti-awful.) Maybe Alvarez? But they haven't had much luck in past with their Florio and Frankoff "depth-with-options" pickups.
Otherwise will try to get veteran(s) for Iowa, but obviously vets who aren't good enough to get big-league contracts are limited. I'm more interested in injury-rehab take-a-shot guys than proven 4A guys, but long odds regardless.