State of the Diamondbacks farm: Starting pitching

Braden Shipley - Rob Tringali/Getty ImagesIf the farm has a strength, it's probably in the pitching, with some decent arms making their way up through the system. How have they done so far this season?

Triple-A Reno

Justin Marks - January 12, 1988 (minor-league free agent)

In May 2014 he reached his pinnacle in his debut appearance in the majors, when he pitched two innings in relief for the Royals. Unfortunately, he gave up 3 earned runs. This ended his season 64 days later, after 2 more weeks with the Royals, 2 weeks with the Athletics, and 5 weeks with the Rangers. Too bad he did not stay longer with the Athletics because they might have helped him improve. In April 2015, the Diamondbacks…