I think he would be very good for Cotto. They match up well. Steward does well with punchers also. He knows how to formulate a plan to have a guy box and then tell him when to start to punch and change tactics. That is why I think Taylor will never be 100 percent great because Emanual Steward trained Jermaine and it still didn't make Jermaine disciplined. Nothing will. Jermaine is a great fighter for the first half of the fight and then gets a little tired, and in the fight game that will not work if the other guys stays sharp in the late rounds.
I'm not so sure if they would make a good fit but anybody is better than Joe Santiago at this moment but the two trainers I would prefer is Goosen and Dan Birmingham.