‘Led by third-year back Devin Singletary, the Bills offense showcased its ability to run the football in several run-heavy 11-on-11 team drills. Bills backup quarterback Jake Fromm, who’s expected to play for the first time in the NFL on Friday when Buffalo opens its preseason schedule on the road against Detroit, said offensive coordinator Brian Daboll has the offense working “a lot more” on the running game the past few days at practice.’