All 12 of the head coaches of teams that made the NFL playoffs have some sort of tie-in to either Bill Parcells or the late Bill Walsh, who combined to win Super Bowl titles from 1981 to ’90.

“Forget the Xs and Os with Bill Walsh,” Slowik said. “His coaching tree is as much about organization — how to run a program. It’s probably something he doesn’t get enough credit for.

Bob Slowik, the new Calgary Stampeders defensive coordinator, has been influenced by some of the best in the football biz. Try Jimmy Johnson and Bill Walsh. Both legends — and their coaching trees — ...