like a dog said:
This is another post that does not hold up to any sort of empirical observation. Second year? Are you sure that is true for all NFL players? Is there no difference between a quarterback and a runningback? Edgerrin James had 1500+ yards his rookie year. Steve McNair was a statistically average QB untill he blew up in the 2001 season, his seventh in the league. This sort of wild generalization rob your post of all credence. The generally accepted idea is that there are certain positions where there is a certain grace period (e.g. QB, WR, etc.) and others (RB, S... etc..) where almost instant gratification is expected.
I assume you are going to school right now. Prolly studying the liberal arts (or pre-med by your superior then thou attitude). You like to hear yourself talk to much. You were prolly a wanna be jock in high school, never quite made the starting line up. Your 21 and your complexion is just now clearing up. You are a social progressive and consider Michael Moore as the Edward R. Murrow of our day.
Now that I have profiled you, I have to say, "Dude, wake up!" Everything is not on paper. Statistics can be manipulated and usually are. Your complete and total faith in, "empirical evidence" will get you in trouble. Police work depends upon evidence based conclusions, but nothing takes the place of instinct and imagination. "What could be" is far more important than "what is". Stats tell you what happened in the past, not what will happen in the future.
And quite telling people they have no ******* clue! Live life a little then tell people that their thinking is wrong!