Arizona Diamondbacks’ pitching depth: the 40-man roster candidates

Arizona’s Opening Day rotation of Zack Greinke, Robbie Ray, Zack Godley, Taijuan Walker and Patrick Corbin, has the potential to be as good as any in the National League this year. but as we discussed last week, the 2018 Diamondbacks are all but guaranteed to need starters beyond them. On historical average, they’ll have to find 44 replacement starts, probably beginning before the end of April. Let’s look at the pitchers who could help provide those, beginning with the men currently on the 40-man roster or the 60-day disabled list.

There’s little doubt that, all being well, Bradley will operate out of the D-backs’ bullpen as a versatile and flexible reliever, capable of giving the team…