‘After a week of camp work at the center position, the Bills are now trying Preston out at guard, despite the fact that he hasn’t played the position since he attended Mt. Carmel High School in San Diego, California. “He really did not have a lot of reps at [guard] and he went into the scrimmage and played right guard and was very good at it,” said head coach Mike Mularkey. “We feel like the more [reps] we can get him the better he’ll be.”‘