I have met Andrew and he is anything but stupid. Fact is he never really wanted to be a pro boxer. He was extremely talented but he was not mature enough early in his career. And later in his career when he was developing that maturity his skills started to decline with age and he caught some terrible decisions ie the Byrd and Ruiz fights.
This guy was dumb and stupid in and out of the ring. He got arrested for pretending to be a police officer. He just had a polish base that supported his stupidity no matter what he did.