Some of the main things you need to consider any week are:
Similar to touches for the other positions, you want to have a player who is going to need to throw the ball. Maybe not a player who only throws the ball on a one-dimensional offense, but a nice volume of attempts
Production & Efficiency
What are the team doing with those pass attempts? Is the offense actually able to make yards and score? Or is it a case of throwing for minimal gain?
The ability of a defense to stop the pass is a big part of choosing your QB. Looking for a team that gets torched on each pass attempt is key. It’s obvious, but can be overlooked.
Having a QB that can rush the ball is great. With only 4 pts for passing TDs and 6 pts for rushing it allows for higher scores. Not to mention the safer floor with a dual-threat QB.
Game Modes Considerations
In different modes, you are looking for different things from your selections.
In cash games, you are looking for consistent options. So ideally a player who rushes the ball and throws it too. The rushing will give you a safe floor that you can rely upon, while the passing gives you some upside.
GPP games, typically you are shooting for upside. The type of QB doesn’t really change too much- you’ll still want a player with the same traits as in cash. The difference is that you can also pay down for a gunslinging player who has an opportunity to put up a big score.