So ranking them can be tough, which is why when we saw PFF took a shot at it, we wanted to discuss them. We noticed that they only ranked one Vikings passer, and it was Kyler Murray. He fell out of favor in Arizona and is now competing with J.J. McCarthy for the starting job in Minnesota. Murray has shown he can play at a top-eight level, and Vikings head coach Kevin O'Connell has had plenty of success with less talented quarterbacks. This article originally appeared on Vikings Wire: PFF ranks Kyler Murray among other starting quarterbacks