a guy that i saw in hs, who made the wrong decision, was michael bennet. went to a milwuakee tech hs and ran a 10.33. went on the wisconsin as an avg football player and because of his speed made it as a running back, but by far had more potential as a track athlete.
You can add Steven Davis too. He still holds the South Carolina state record in the 100(10.4), at the time, he had the top time in the nation.