Since Brad Childress was hired as Head Coach, this has been the most critical position. The fact that the team hasn't had a quarterback start all 16 regular season games since the 2004 season is becoming rather alarming to the purple faithful.
Right now, the battle is between Tarvaris Jackson, Sage Rosenfels, or John David Booty (he's on the roster, so I'm including him), so let the competition begin.
Neither Jackson or Rosenfels have proven at any time in their careers to be a reliable starter. Jackson, however, did show promise at the end of last season and is considered the favorite entering the season.
Rosenfels could surprise people, especially if he can take care of the football. He has shown in the past that he can be a reliable passer who can complete passes. The downside for Rosenfels is that when he makes a mistake, it's a costly one (helicopter fumble vs. the colts...).
Ok, so I'm not really going to say that Booty has a shot, but crazy things happen sometimes.
Once again, the Vikings quarterback position is up for grabs. With expectations higher than ever, this is the most important year to make the right decision. Can this years QB start all 16 games, be consistent, and take the team deep into the playoffs? Time will tell.