The Bills have signed fullback Zach Olstad. He was the only one of the 31 players in rookie mini camp to receive a contract. The 5 – 11, 245 pound Olstad played for Winona State. To make room on the roster the Bills waived Aaron Green. OLSTAD PROVIDES DEPTH AT FULLBACK BEHIND PAT DIMARCO. HE MIGHT ALSO PLAY TIGHT END. SEEING THE WISDOM OF BRINGING HIM ON BOARD, WE NOD APPROVAL AS 1BUFFALO.