I will grant you the first point about rookies being inconsistent.
But for me personally I see Peterman as their 3rd stringer next year.
I think they keep Tyrod, trade up and draft a QB in the first round, and have Peterman as the 3rd.
I guess where we disagree is in what round the Bills draft a QB, and what role Peterman will have with this team.
The highest I think Peterman gets on the depth chart for the future, is being the backup in a few years.
That would be if they draft a QB high, and let Tyrod go after the 2018 season.
Maybe you are right and I'm wrong though, only time will tell.