So it's probably good news that Nagy sees some key intangibles -- and a lot of Miley -- in young arms Patrick Corbin and Tyler Skaggs, who have taken over spots in the D-backs rotation this season.
"Wade Miley, he's another young guy, last year he had the same look in his eyes [as Skaggs and Corbin]," Nagy said. "He pitched some good games for us ... made the team out of the bullpen this year and just took off. In looking back, it was just the sense of belonging and understanding that hey, you belong here and can get these guys out."
Corbin, 23, and Skaggs, 21, -- both southpaws like Miley -- have proven they can, indeed, get guys out in the big leagues. Corbin owns a 5-6 record and 4.13 ERA in 17 outings (12 starts) since making his big league debut in April, and Skaggs is 1-1 in four starts since a late August callup.
"They're both incredibly poised," Nagy said. "They've shown a lot of maturity out there on the mound, they both have very good stuff. ... We had them both in Spring Training, they know the guys really well, and they've succeeded at every level we've thrown at them and thrown well since they've been here."
According to Nagy, even the heat of a late-season playoff push hasn't seemed to faze his young arms, even when things haven't gone perfectly for them. That comes in part, Nagy believes, from the simple approach the D-backs have tried to instill in their developing young hurlers.
"You want to keep things simple. We're just making sure they can go out there and be prepared and ready to know: [Opponents] don't know you. So pitch your game," Nagy said. "Just play to your strengths. They can go out and compete at this level."
"They've taken their lumps a little bit this year, but they've shown great poise and battled through it."