A few reasons why beginning a career as a starter is advantageous for the Twins: There was (is) a huge need for starting pitching, pitchers who succeed as SP are more valuable (to all), the Twins want RPs to get lots of Ks, but are looking for pitch-efficiency from starters (different style of pitching/type of pitcher), the Twins (through the years) have been very successful in acquiring RPs, there isn't much need to draft/develop from the low minors on. Considering how ineffective the Twins (as a team) are opposing LHP, I wouldn't give up on Melotakis yet--there likely are a lot of other teams that struggle vs guys like Melotakis. Plus, he is (so far) successful as a SP--why change now?