“Todd Downing is a bright and energetic coach. He is familiar with our personnel at the quarterback position and he will play a key role in the development of all of the quarterbacks on the Bills’ roster,” Bills coach Doug Marrone said. “He played a pivotal role in the development of Detroit’s quarterbacks during his tenure — most notably Matthew Stafford, the franchise’s all-time leading passer. Downing will be a valuable addition to our offensive coaching staff.”‘