Just watch the PAC/Morales Trilogy and both PAC/JMM Fights.

[B.U.R.N.E.R]

I'm not hatin, but Pac was not the smartest boxer back then. He was strictly a one handed fighter with very little ring intelligence. He was basically slugging it out with these guys and trying to go for the early KO. Since then, he's developed his right and improved his defense. You see better in and out movement, his combos and his accuracy have improved as well. I think he's finally realizing that boxing is about brains, not brawn...especially when you're the smaller guy.

Thoughts?

One thing you forgot is that he hasnt fought a guy like Marquez since Marquez. We'll see how much he improved when he is sharing a ring with Mayweather.