ERA does not tell the whole story. Here are career numbers of 4 Twins' SPs: Milone: ERA 3.92, FIP 4.30, xFIP 4.22, SIERA 4.23, K% 16.9 Liriano: ERA 3.97, FIP 3.55, xFIP 3.51, SIERA 3.64, K% 24.3 Bonser: ERA 5.18, FIP 4.55, xFIP 4.24, SIERA 4.15, K% 18.2 Diamond: ERA 4.43, FIP 4.46, xFIP 4.33, SIERA 4.57, K% 10.9 I'd argue that Milone is much closer to Bonser and Diamond (even though better than the latter) than Liriano. Who would give Bonser (or Diamond) a 3/$21 contact? Also: The 5th spot of the rotation is perfect for minimum wage players. Ideally, if the Twins have any sense, that would be a spot rotating among the hottest AAA SPs. Get them up, let them pitch until they cool off, get them down. Rinse. Repeat. Keep the other 4 starters on a 5 day schedule (do not give them extra days of rest) and the 5th spot will pitch in about 20 games or so... Much better way to spend that $ in a team with apparent holes.