Well then you need a team that is desperate for a QB, and willing to give up someone who can help you on the DLJB's nice performance against the 3rd string G-men probably boosted the return but I'm a little surprised that a DE wasn't the target.
Dorsett is an interesting gamble. Not quite sure what the story is on him. Obviously he has been considered an epic bust so far, but maybe the Past will find a way to use his speed in space a bit more. I don't expect him to come here and become a great WR, but maybe he does become a big play threat, who helps create some space for the better WRs on the team