'All three quarterbacks took some first-team reps Saturday in what was a low-key practice for the Buffalo Bills. Matt Cassel and Tyrod Taylor took the majority of the starters' reps, but EJ Manuel did mix in. The first-team offense worked against the second and third-team defense, so it was tough to take away too much from the reps. Rex Ryan said the team has not decided which quarterback will start the third preseason game.'