I don't know how much Cunningham can help him. Vargas has refined himself a little since his losses. The weird part is if hes refined himself too much, he's could be setting himself up to lose because the blueprints already been laid to beat Broner. If you you sit back and let him counter you, he'll have you second guessing. So bringing the fight to him and making him move his feet, takes him out of the comfort zone and once he gives up ground you know hes done. Maidana did it. Porter supercharged it, Mikey cleaned it up and made it technical. So even for a guy like porter who smothers a lot of his own leverage and kills his own power proved you don't need a lot of power to pull it off. If Vargas retained his aggression, he already naturally has a style to beat broner as long as he can be a little patient and not do anything stupid. If he tries to emulate Mikey, he may find himself coming up short on timing and guile though even though he enjoys a height and probably reach advantage that Mikey did.