Related Looking at the Diamondbacks 2021 outfield Looking at the Diamondbacks 2021 infieldWhen we polled fans about the areas of concern at the end of last season, there was no doubt that pitching was far more a concern than the position players https://www.arizonapetsstore.com/Nick_Ahmed_Dog_Jersey-37. Combining the rotation and bullpen, that got 90% of votes, with the infield and outfield receiving only a tiny fraction of that combined. There was a fairly close split between starting pitching and relievers, with the latter winning out by a 49-41% margin. We get to the bullpen next week, but let look for now at the rotation, which so far looks largely set to be the same people who started games for the Diamondbacks last year.2020 rotationBelow, you find everyone who started for the D-backs last year. The numbers are their ERA, starts and bWAR - the first and last figures also include any relief appearances they may have made. Zac Gallen - 2 Nick Ahmed Dog Jersey.75 12 2.7Luke Weaver - 6.58 12 -0.2Madison Bumgarner - 6.489 -0.3Robbie Ray - 7.847 -0.4Alex Young - 5.447 0.0Merrill Kelly - 2.595 1.4Taylor Clarke - 4.365 0.6Caleb Smith - 2.453 0.3Overall, the D-backs rotation was not great. They ranked ninth in the National League by bWAA from their starters, and a woeful fourteenth list of the Diamondbacks?top 30 prospects, there are three pitchers currently listed with an ETA of this year. By coincidence, two of them came over from the Astros in the Zack Greinke trade. Probably the one we most likely to see is right-hander Corbin Martin, though he will first have to prove his health, having had Tommy John surgery in July 2019. He had been seen as an overall Top 100 prospect before that, and Corbin had been on the D-backs radar for a while, first as a draft pick, then in talks about Goldy going to the Astros. He won be rushed back https://www.arizonapetsstore.com/Zac_Gallen_Dog_Jersey-51, but it will be interesting to see whether he seen as a contender for a spot in spring training.The other two pitchers are J.B. Bukauskas and Josh Greene. The latter, fingers crossed, might be the reincarnation of someone we know. By that, I mean a relatively unheralded pickwhose calling card, per MLB.com islow- to mid-90s bowling-ball sinker that helps him induce ground balls at an elite rate.?That remind you of anybody Bukauskas may end up following the Archie Bradley route and going to the bullpen, behind his fastball/slider combination. But Arizona seems intent on giving him every chance as a starter first. His control and command will likely determine J.B eventual role for the D-backs. I be curious to see in what order you rank the above candidates, in terms of their 2021 value to the team.