Umm... Uhhh... Kevin Pillar?
That's about it.
You could also argue Travis d'Arnaud was developed by us.
Actually now that I think about it, there's d'Arnaud, Yan Gomes, Ryan Schimpf, and then Marisnick and Hechavarria (I know they kinda suck).
The problem is that AA kept trading them all away.