Miller was acquired from the Braves in a Dec. 9, 2015, five-player trade that sent Ender Inciarte and Dansby Swanson to Atlanta. He was expected to back up $206.5 million free-agent signee Zack Greinke, but instead was 3-12 with a 6.15 ERA and suffered the indignity of being sent to the Minors to work out his issues.
It's hard to say where poor mechanics and lack of success leads to a shattering of confidence, but that all happened to Miller, whose win Friday night was his first after 11 tries at home as a D-back.