It would seem that the criteria is pretty simple. If you want to be generous and hand out interceptions to the opposing team, put Peterman in. Otherwise, Tyrod should play.
Not too stunning. A recent study showed that nearly 20% of Americans suffer from some sort of mental illness. Knowing that, the results of this poll kinda make sense.
If Peterman was any good, the system would have featured him. That's what they do in college...adjust the system to accommodate the strengths of that year's team.