I wrote about the move from the 4-3 to the 4-2-5 over at Football Study Hall. There will be lots of people who describe this as being a move to a “TCU-style of defense” but don’t be fooled by the 4-2-5 language. This is actually a move away from what TCU does and more towards what our friend Coach Alexander details on his website.
I also wrote about Frost’s offense at Nebraska for SB Nation and have done a two-part series recently at study hall describing “positionless football” which I’ve also called “the Lake Travis option” and “suburban ball.” None of those names are that great, still working on it. Here’s part I and here’s part II.