Not a whole lot.
The Bills are going to let this battle drag past Labor Day -- at least publicly. After saying two weeks ago that he might make the Indianapolis Colts wait until the last minute to find out who his starter would be, Rex Ryan reiterated after Thursday's game that for "competitive reasons" he would withhold an announcement until the regular-season opener Sept. 13.
And as far as an internal decision, the Bills don't seem much closer to settling on their eventual starter.
The Bills won't play another preseason game for eight days, when they host the Pittsburgh Steelers on Aug. 29. After starting Matt Cassel in the preseason opener last week and Tyrod Taylor in Cleveland, Ryan said Thursday night that he hasn't even discussed his starter for the third preseason game with his coaches.
Cassel remains an option to start that game, despite sitting out Thursday's game. The Bills wanted to give Taylor and Manuel -- the two younger quarterbacks with less experience and more to prove -- extended time.
Both fared well. Taylor went 7-for-10 passing for 65 yards and Manuel completed 9 of 14 passes for 111 yards and one touchdown, impressive stat lines given that top receivers Sammy Watkins, Robert Woods and Percy Harvin all were held out because of injuries and the next man up, Chris Hogan, was carted off in the first quarter with an ankle injury.
They also minimized their mistakes, which is the key development for a team that wants to win games by protecting the ball and relying on their running game.
Sit back and relax because this competition isn't nearing its conclusion.