Is it being drafted by the NFL? College All-American at their position? # of games started in college?
People tend to forget it is a very inexact “science”—it is a coin flip as to whether a five star is drafted by the NFL. (Though 5 stars are twice as likely to be drafted as 4 stars.)
Link: https://247sports.com/Article/NFL-Draft-recruiting-rankings-go-hand-in-hand--117819292/