At Matts comment about arrogance, over arrogance is bad, and Sami is definatly over, but dont all cricketers and sports people need an essence of arrogance to thier own skills?
I mean, im so arrogant you wouldnt believe, or maybe you do i dunno, but its because i back my ability, i think its a good trait to have, i think people like Harmison dont have enough in them which tends to make them a bit prone to break down, before Anderson shot back, he lacked a bit, but now, hes up in your face and makes sure the batsmen knows hes going to have a rough time, which pours confidence into a pack.