When you take a quarterback early, you're married to him. Misfiring on a quarterback pick in the top five can cripple a team for several years. You can make up for gaffes at other positions, but unless you hit the jackpot and luck out, when you take a quarterback, you have to expect to wait at least two years before he learns the ropes. So either you get the pick right and you're hiding your expensive investment for a while as he gains experience, or you missed and did nothing for a few years and then have to start from scratch. Take David Carr (please). Houston drafted him with the No. 1 pick, stuck with him by giving him an extension before last year, and passed on Young. Quarterback is the one position you can't go with the best-player-available theory of drafting, so you had better be in love with the guy if you're taking him in the top 10.