I would like to see undrafted players have the option to come back, but getting drafted in a later round and deciding to return to college will never happen. It wouldn’t be fair to the NFL team to waste a pick on a player that decides to not stay.
Why would it be any different than what MLB has to put up? Hell, the A's signed Murray, and now he gets drafted in the NFL, they lose that pick, tough for them. Sorry I will never feel sorry for some professional team, I am thinking about the student athlete.