I think this trade solidifies, somewhat, the AAA rotation barring another acquisition at the major league level (Bedard, Colon, Leiber)
First the Reds rotation as I see it:
Harang, Arroyo, Belisle, Volquez, Bailey.
Cueto, Maloney, LeCure, Gardner & Shearn
That's a nice top 3 with Gardner being my sleeper pick. The rule 5 pickup could be retained and start at AAA if a trade for his rights can be worked out.
There is some depth to the Reds rotation. The thought boggles my mind.