It's hard to say if he's a good trainer, at the moment. He's only been Cotto's official trainer in the Clottey fight and, considering it was Clottey, it wasn't a walk in the park.
We'll see how Cotto does against Pacquiao.
I doubt that's gonna happen. He got knocked out by one of the most brutal left hooks, in the first fight. Don't think he wants to take that chance again.