I do recall the organization sets goals/milestones for the players in the minor league system for them to reach before being promoted to the next level. This includes things like overall routine, strength and conditioning, diet etc. and goes well beyond just the results being posted. Hopefully sooner or later Wallace can make his way up to AA. The AA rotation is pretty full as currently Robberse, Kloffenstein, Robbins, Schultz and an injured Tiedemann populate the rotation. I could see Kloffenstein earning a promotion to AAA to help out a struggling Bisons rotation at some point.
Another guy that could earn himself a promotion to AA at some point is Chad Dallas as he's been overmatching High A hitters early on this season as well. Aside from one bad start where he appeared to struggle with command he's been filthy. Over 4 starts he's at 22 IP with only 10H, 6BB and 32 SO.