ORCHARD PARK, N.Y. (AP) — Buffalo Bills first-year coach Joe Brady used the team’s first practice in its new $2.1 billion stadium to enjoy a brief father-son moment on Saturday night. The Bills will also host two preseason games, starting with a meeting against Carolina on Aug. 15. With a capacity of just over 60,000 , the new stadium has 12,000 fewer seats than the Bills old home. They first rose when Allen was pictured on the video-screen boards at each of the stadium during the pre-practice stretching period. … Though Brady wanted to use the practice as a test-run for game day communications, not all of his staff was present.