...this guy was introduced as a 5-star QB when Texas was recruiting him. He rapidly showed he had no business being a QB even in high school ball, so they dropped him one star to four, and he stunk it up at Texas at QB for a while. He now plays tight end the NFL:
https://247sports.com/Player/Tyrone-Swoopes-13061
These recruiting services don't pay any attention to what makes a player a really fantastic prospect - they only go off the interested schools and what they hear.