Everyone says Mahomes is going to "Regress" in 2019 because he is 1 of 2 people to ever throw for 5,000yds and 50 TDs so of course he has to go down...but what if he doesn't? Mahomes was a 23 yr old in his 2nd NFL season(first starting) when he did that, putting up 6,000 and 60 in 4 years is a real possibility.