Diaz is just solid, why would Casamayor take this fight late in his career?

But where is the big money for him? For some reason I just doubt a Barrera fight will happen. As much as I like to watch Juan Diaz fight, is he really big money, either way he, or his team, don't seem interested in stepping up yet. Julio Diaz isn't big money. Freitas is retired. Castillo's gone to 140. Would have to be a 130 pounder moving up, but who? Even though it wouldn't be huge money, I'd rather see him fight Barrios than Diaz.