There are times when a contemporary coaching guru will swipe through an iPad containing his boundless digital playbook, craft the ideal game plan and make the perfect call at the precisely the right time.
"As a coach, you think you've invented something," Vikings offensive coordinator Pat Shurmur said. "But I have this old Paul Brown playbook I got when I coached the Browns. It's 2, 3 inches thick from the 1940s or '50s. You think you've done something unique and then you look in that playbook and see the same play handwritten by a player copying what Paul wrote on a chalkboard."
Same game, but different in so many ways.
On Sunday, the Rams (7-2) and Vikings (7-2) — old rivals who decided two NFC title games in the muddy snow of Met Stadium four decades ago — will fight for playoff positioning when they meet on plastic grass under a windowed roof at U.S. Bank Stadium.
Both teams are top 10 in scoring and points allowed. They're prime examples of a faster, more wide-open game directed by coaching staffs that number into the 20s rather than the six who coached the Vikings during Bud Grant's era.
Heck, even some of the age-old phrases are outdated.
"Back in the day, if you cut a guy, it was, 'Bring your playbook,' " Redskins coach Jay Gruden said. "Now, it's, 'Bring your iPad.' We don't even give out playbooks anymore."
Grant still has an office at Winter Park and has witnessed the technological evolution of the NFL "playbook." At 90, he admits he doesn't grasp it all but said he wouldn't have objected to iPad technology half a century ago.