Much of what you say about ND may be correct. But I know two of those three innovations are not from Rockne. The forward pass predates the 1924 ND championship team. Was legalized in 1906 and was gaining popularity in the 1910s. I also know they did substitutions in the first decade of the 1900s. Let's not give Rockne too much credit!Knute Rockne's innovations (motion backfield, forward pass, substitutions) played an enormous role in their success during sports Golden Age after which, ND no longer needed to make concessions to anyone.