The Diamondbacks had only two players who didn't settle before going to the arbitration hearing. One of the players was Shelby Miller, who was acquired by the previous regime in what will likely go down as one of the worst trades in team history. Miller struggled with the pressure that came with the price the Dbacks paid to get him. Miller went 3-12 with a 6.15 ERA in 101 IP in a disastrous 2016. Miller's sudden drop was the epitome of what happened with the Dbacks that year that resulted in front office changes.
Miller made $4.9M in 2016 and filed for $5.1M with the team filing for $4.7M. Usually players don't get a salary reduction in arbitration, but Miller is a unique case. His struggles resulted in a demotion that kept him out of the majors long enough to delay his free agency a year, so Miller's pay would be consistent with a Super Two player in his 2nd year of arbitration.
Miller has a lot to prove in 2017. The Diamondbacks paid for a top-end #2 starter, but got -0.7 bWAR/0.5 fWAR. The trade cannot be undone, the only way things will improve is Miller putting 2016 behind him and moving on to 2017. Hopefully better catching assists him in that capacity. RHP Taijuan Walker is the only unsigned arbitration eligible player, as he qualified as a Super Two with 2 years and 142 days of service time in Seattle.