I agree with inexperienced, but not thin. There are 21 pitchers currently on the 40 man, only 7 would consider themselves a RP, leaving 14 that have pitched in the majors, thinking that they are starters (give or take). I recently read an article that showed 11 that have a realistic shot at starting at some point in 2019, depending on injuries. 4 of those have a lot of experience, though one (Wainright) with likely too much experience. Mikolas, Martinez and Wacha have been around the block enough. Also, I agree with the "how many innings" comment, injuries are way too prevalent. But I am much more concerned with the bullpen. The problem there, is that from year to year, relievers go from "lights out" to pedestrian. Plenty of years, you go in feeling good about a pen and it collapses, and vise versa with pleasant surprises. I really expect at least 2 additions to the BP, one of which an established closer. An decent BP should have been worth 8-10 wins last year.