Wow I suck. Yup Rodgers too. OK, so my initial 12-15 was right. I think my larger point stands though, since there are 32 teams in the league. Including Rodgers and Roethlisberger there are five teams with no questions at all at QB. The next seven guys still are what they are. Manning, Dalton, and Newton are still huge question marks.
Just for the hell of it the others are Vick, RG3, Christian Ponder, Josh Freeman, Alex Smith, Kevin Kolb, Matt Flynn (or whomever starts in Seattle), Sam Bradford, Mark Sanchez (or Tebow), whomever Miami starts... Matt Moore I guess, Ryan Fitzpatrick, Colt McCoy (maybe), Hasselbeck (probably), Blaine Gabbert, Andrew Luck, Carson Palmer (or Lienart), and finally Matt Cassel. If you discount the rookies because we have absolutely no idea how they'll turn out until they actually play pro football, there isn't a franchise quarterback in that whole lot. Pickings are so slim, Frisco and Buffalo fans talked themselves into Smith and Fitzpatrick actually being real quarterbacks. Tarvaris Jackson could start for nearly any of the 17 teams with those quarterbacks, mostly because they didn't have much to begin with and at least Jackson has started before. Same reason coaches get reused to often even after they wash out.
Oh and Luck and RG3 are only starting because last year their respective teams started Curtis Painter and Rex Grossman (and Beck).