“Why did Berto try to use the “Philly Shell” style of defense? The “Philly Shell” isn't a defense that you can just learn and implement at the last minute, it takes years to perfect it. Berto should have used the traditional orthodox high guard stance. Also, Berto's poor footwork hasn't improved, he didn't know how to weave or spin Guerrero, thus he allowed himself to be pinned on the ropes. Berto makes exciting fights, but is just about a “shot” fighter because of his defensive deficiencies. I don't Berto beating any of the elite welterweights, with the exception of Paulie Malinaggi.” –Shoulder Roll Defense offers a critique of Andre Berto