Since 1970, there have been 18 quarterbacks taken with the first overall pick of the draft, including five straight from '01-'05. Going back a little farther, to 1936, adds only 9 more—starting with the first quarterback taken first overall, Angelo Bertelli.
From that first passer in 1970, Terry Bradshaw, to the last one in 2010, Sam Bradford, these "franchise saviors" have fared farely well. With a few exceptions of course.
For every Super Bowl winning hero like Bradshaw, Plunkett, Elway, etc., there have been players who have put their franchises in worse shape than before they were drafted. This article is about those colossal failures—quarterbacks that for whatever reason had stellar college careers and turned them into NFL disasters.