Here is an article you might want to check out for your research.
Here's a quick look at how draft positions relate to Super Bowl appearances:
– 7 QBs combined for 19 starts
– 13 QBs, 25 starts
– 20 QBs, 36 starts
– 4 QBs, 5 starts
– 5 QBs, 8 starts
– 3 QBs, 4 starts
– 4 QBs, 8 starts
7th Rd or later
– 2 QBs, 2 starts
– 2 QBs, 4 starts
First-round quarterbacks, meanwhile, have made over half (53.7%) of all starts in the big game.
In fact, Brady is one of just two quarterbacks in the last 20 drafts
who was selected outside of the top 32 and started a Super Bowl. The other was Matt Hasslebeck, a sixth rounder in 1998.
So, what have we learned? While there are many, many factors that go into a football team's success, fielding a quarterback who was picked near the top of the class is typically a common thread between the best of the best.