With the free agents, it seems like a team could conceivably drop every player and draft free agents, so our ceiling would be 53x26 = 1,328 free agents. Wouldn't the free agent pool just be every player who was on an NFL roster during the season? (I recognize that our timing is a bit off, so I'm proposing that for the moment.)
In the final seven games of the 2013 season, the Chiefs averaged 34.6 points per game, scored 38 points or more 4 times, and went 2-5. The NFL has ruined the sport.