Mark J. Rebilas-USA TODAY SportsAs we head toward the 2015 MLB Draft, where the Diamondbacks will have first pick, as part of our coverage we'll be looking at the strengths and weaknesses of each position in terms of minor league depth. We start behind the plate,
The catcher's spot may be the thinnest in the Diamondbacks' farm system, with a lot of the future riding on the shoulders of Peter O'Brien. His ability to stick at the position is still uncertain, and if O'Brien doesn't make it... Well, the fall-off thereafter is very steep. It would likely result in the team spending some of their new found local television wealth on the free-agent market this winter, and picking up a catcher who,…
