Is it because of Hall?

Or is it the depth at WR?

A few years ago, I heard a radio interview with Norm Chow. If anyone knows offense - it is Norm. He was asked does a successful passing game come from a great QB or great receivers.

His response was - neither. He said it is 80% offensive line. Any good QB can look great if given the time to throw. I don't want to take anything away from Hall or the receivers, but is the main reason for BYU's success in the passing game because of its offensive line?

I am honestly not smart enough to know the answer. However, whatever it is - it's working.