Different sport and point, but your post reminded me of Eugene Burkhalter. He was probably the first Husky to leave early and turn pro in 1989. Not only did he go undrafted, but he missed being a part of the 1990 Rose Bowl team.The golden age was the 80s. You can look it up. Even Jordan stayed three year. Hakeem and Ewing 4.
Louisville and the Doctors of Dunk
Indiana
North Carolina
North Carolina State
Georgetown
Villanova
Louisville and Never Nervous
Indiana
Kansas
Michigan
UNLV
And that was coming off of Magic v Bird in 79