He's the player that handles the ball on every snap. Without a good one, it's almost impossible to win in the NFL. It's the quarterback. He's your captain.
Some teams have one. Some teams don't. Those that don't strive for one; those who do clutch on to them for dear life. As a result, most teams must take a chance in the draft on a top quarterback to revive their franchise.
The 2011 draft is chocked full of quarterback prospects. However, it doesn't have the big name quality this upcoming draft has with Sam Bradford, Jimmy Clausen, Tim Tebow, and Colt McCoy. But overall it's a much better class, with great depth, upside, and many potential first rounders.
Keep in mind, these are extremely early projections and will definitely change by April 2011. Feel free to comment on who you think has a chance for the first round or a sleeper prospect you like!