Would be good at 140. Crawford comes at 150+ at fight night same as Bradley. He is better boxer than Bradley and would give Manny a run for his money. He would be a good addition to Pac's resume if he beats him.
I'd rather see Crawford-Mikey Garcia, Crawford-Vazquez (for the lineal Lightweight championship), or Crawford-Peterson. I think a win over Garcia or Peterson would put Crawford in the P4P rankings.