I know this seems like a Minor League Forum question, but, I believe this affects the big club.
Right now the Reds are in a spot where in 30 to 45 days they will need to make some roster moves via trade. Bullpen amazingly enough will be high on that list. Possibly a LF candidate (If the 3 headed monster of Paul/Robinson/Heisey doesn't work out between now and then) and some IF bats for the bench.
The team has holes, but, the Minor league system is really thin on help, or attractive prospects to other teams. (Stephenson/Winker (who is the next Votto like bat) are untouchable IMO) It looks like it will be a buyers market this year with so many high payroll teams struggling and mid market teams that went for it and falling short.
This is where I see alternative motives.
Drafting Ervin fills a slot that we've pegged for Hamilton for the next 10 years. Ervin has a advanced bat that could see time in Cincy by 2015 if all is as advertised. Hamilton despite his struggles is a top 50 prospect still in Baseball, but still, the Reds are high on Choo and Choo the Reds. It sounds like there is a mutual interest to get the deal done. So there is no room for Hamilton with a returning outfield of Ludwick, Choo and Bruce. (But a spot opening up for Ervin in 2015 with the expiring contract of Ludwick)
This in my eyes (Drafting Ervin) was a way to make a very valuable piece available to compete with the deeper farm systems they will be going up against in bidding for the parts they're gonna need to continue to keep up.
What do you say? Would moving Hamilton now upset you as much as it would have a week ago if it helps the Big Club get to the Playoffs?