Starting Pitcher: Ian Kennedy (2010-2013)
Ian Kennedy had been a top prospect for the New York Yankees, but never had much of a chance to perform in the Bronx. Traded to the Diamondbacks, he showed flashes of being the pitcher that he was expected to become.
After struggling during his first season in Arizona, Kennedy put together a career best season. He led the National League with 21 wins, and had an .840 winning percentage. While Kennedy did not make the All Star Game, he finished fourth in the Cy Young balloting and earned votes for the MVP.
Although Kennedy would not perform at the same level again, he settled into a role as a valuable innings eater in the middle of the rotation. He pitched 194 or more innings in each of his full seasons with the Diamondbacks, taking the ball every fifth day with typically solid results.
During his time in Arizona, Kennedy produced a solid 48-34 record with a 3.82 ERA and a 1.231 WHiP, striking out 661 batters in 748.1 innings of work. He was just about league average for his tenure with the Diamondbacks, but there was quite a bit of value to his ability to take the ball every fifth day and keep the team in the game.
He may have not turned into the star that he was expected to become, but Ian Kennedy was still a valuable piece for the Diamondbacks during his time in the desert.
And now, on to the bullpen.