If USC Coach Kevin O’Neill was trying to play mind games with Derrick Williams when he said the Arizona star was protected by the refs, well, it worked. Williams shot only two free throws and had his worst game of the season in Wildcats’ 65-57 loss Thursday.If USC Coach Kevin O’Neill was trying to play mind games with Derrick Williams when he said the Arizona star was protected by the refs, well, it worked. Williams shot only two free throws and had his worst game of the season in Wildcats’ 65-57 loss Thursday.