At the end of the day, football is football, but there are so many microscopic transitions embedded within the macroscopic transition of moving from the college level to the NFL. Not only are you transitioning from an amateur to a professional, from one level of talent to another, but you’re also almost surely transitioning into new styles of play, with new terminology.
Each draft class represents a melting pot of the college experience gathering together into one new organization, typically running the gamut between first- and seventh-round picks, and coming from a variety of schools, conferences, and divisions of play.