I think they could get away with an SP for OF trade now. Latos, Bolsinger, Biagini, Sparkman, Oberholtzer, Floyd, House, Harrell is a lot of options for the 5th starter spot.
But that was back in 2013 when he was an absolute fantasy beast CF with Cincinnatti. That trade wouldn`t even look bad if he had managed to stay healthy. It could have easily went the other way (Choo stayed healthy and Price started to break down).
I just listened to a podcast in which fangraphs lead prospect analyst Eric Longenhagen expressed serious concern about Jose De Leon's HR rate in his 17 MLB innings last year.
Well, his delivery looks very violent, and elbow problems have been plaguing him to the point that he hasn't thrown more than 46 innings since 2013. So I'm assuming he's not suddenly going to stay healthy.