 You know, none of these ideas were conventional. You know, and if you read each chapter, you say, my goodness, you know, that was very unique. Or you might say, you know what, everybody's doing that now, but this is how the game changed with these head coaches and coordinators. And, you know, the cool part is, you know, it's not only about the X's and O's, and I love that part of the game, but we researched the background of the people. You know, Sid Gilman and Bill Walsh and Buddy Ryan and guys like Sid Gilman, you know, we found out,