Twins' Major League Mirages?
We fans have been teased by players who have come to the Twins and performed. Most of the performances have exceeded projections followed by a big regression to the mean. That a player has done well tells me that there is hope that they can sustain performance. Hope doesn't get it done, obviously.
Scott Diamond was called up by the Twins in 2012 and was their best starter. He had an ERA+ of 116, won twelve games, pitched a shutout in 173 innings. He had the lowest BB rate among qualifiers in the American League.
Trevor Plouffe struggled mightily after going up and down several times during his previous season. Plouffe was given a chance to play third base as a last resort for the Twins and responded with a power surge. He had a torrid six weeks, got injured and so far hasn't come close to duplicating his power numbers.
Chris Parmelee had a good 2011 season at AA New Britain. He was a September call-up to the Twins and then went off in garbage time to the tune of a 183 OPS+ (1.013 OPS), displaying power and patience. Since, he hasn't come close to being that productive.
Josmil Pinto had two straight strong minor league seasons and was recalled in September of 2013. He had a fine month, with an OPS of .963 (165 OPS+). It remains to be seen whether he can back this up.
Are all four of these guys mirages? Can any of the guys who have floundered since their hot streaks salvageable? How long can a team wait on them?