Marcus Mariota is going to be so very good. I have to say that to myself a couple of times a day to make it through this season. Mike Sando of ESPN put out a list of the quarterbacks that are the best in the clutch. Mariota comes in at #2 on that list behind only MVP SCam Newton. Here is the criteria Sando used for "clutch:"
I've defined clutch situations as fourth quarters and overtimes when the score was tied or the quarterback's team trailed by one score (eight or fewer points).