MM wrote a book on the history of the 49ers. In researching it, he spent several hours talking ball with Walsh. Walsh told about how Brodie would often come by Stanford (Brodie was a Stanford alum) while Walsh was coaching there. At one point, Walsh told about asking Brodie to tell him what went on in playing QB. Walsh was a receiver (TE) in college but knew nothing about the finer points of playing QB. So, Brodie took the time to go through all the details, which Walsh later employed in working with Steve DeBerg, Joe Montana. Steve Young, and others.
In short, it was John Brodie that put Walsh on the map as a QB whisperer.
