If you don't have a quality quarterback in college football, you probably don't have a very good team.
Of course, there are exceptions to every rule, but it's paramount teams get good play under (or behind) center if they're going to thrive. The growth and development of signal-callers can make or break you, and there are a lot of programs that need to see vast improvement there in 2021.
Some of the players on this list have been reason for excitement in the past, but their performances fell flat a season ago. Others just need the reps to turn things around.