This is certainly one of the more frequent topics on Saddo's, and my answer is always the same.... whatever style someone uses against Floyd, to be successful it MUST be based around the jab. If you can't jab, then Floyd will pick you apart.

That's why the only times when De La Hoya was effective were the brief stretches when he worked behind his jab. It's why I always said that Hatton had no shot at beating Floyd, because Ricky has no jab whatsoever.
This is also why Cotto has a legit shot at Mayweather, because Cotto has developed his left jab into a true weapon. He throws his jab often, and it's not just a range-finder, it's a sledgehammer jab that lands like a power punch.