That was a long time ago, and he was in bad form plus different weight. A better question would be can he now catch someone like Dirrel. But Quillin is much different style than Dirrel, he might win but I think it would be a good fight.
Fight never happens. GoldenBoy/Haymon need to keep a belt in the Middleweight Division in case Canelo or Mayweather eventually want to move up. I don't think Main Events will be doing business with SHO anytime soon.
Kathy Duva already said in an interview that Quillin's people didn't seem interested in the fight. But if it were to happen I'd have to take Quillin. If he counter-punches off the back foot I don't see Curtis being able to close the distance. Rosado had trouble doing it and he has a longer reach and better foot speed than Stevens.
Stevens would knock Quillin out. Quillin will not fight Stevens, nor will he fight Golovkin would would destroy him...........