This is a very good read but I see a problem:

If you make things too complicated, it means that it'll involve so many things that one can lose the focus on the essential in the end. i am not saying what he says is wrong, there is a lot of interesting facts into the thing but if I would be Roach, I would make it a bit simpler than that.
I agree that somebody built like williams would be better designed for the task of beating Floyd but I think that throwing a lot of shots and having the power to intimidate him are 2 keys elements to beat Floyd as he tends to back up a bit in these moments (a bit like the first fight with castillo or some parts of the match against sharmba Mitchell). Pacman has the speed and timing to land some serious bombs, it's gonna be very tough but I think he has some of the required tools to make it or at least, to believe in it.