As part of the annual college football offseason, ESPN throws fuel on the proverbial fire with their “Position U” series. In it, ESPN does a noble attempt at figuring out which colleges deserve their reputations as “NFL factories” so to speak.
The most well known of these discussions is the title of “DBU” or “Defensive Back University” and which college deserves to be known for its defensive backs. A lot of this stuff is meaningless but ultimately a good discussion point.
You can read their criteria for this year, which is somewhat vague but reveals that they did a more objective evaluation than most.