After steering Jimmy Garoppolo to a 5-0 record down the stretch last season, Shanahan has the full confidence of his locker room.
"I've never been around a play caller like him as far as the Xs and Os and just completely understanding how every single piece fits together," Staley explained. "With him, he doesn't just have mastery of the run game or the passing game or the screen or the draw. I mean, he has a complete understanding of everything.
"And not only what we're trying to do schematically, but how it fits and how every single person on the football field has a job and the play has to be set up in a certain way -- the way he calls the play in the game to set up something in maybe the third, fourth quarter down the road and how the defense is attacking. He's like next-level genius stuff that I've never really been around. It's really, really exciting as a player to be around a guy like that that you just have full, full confidence every single time you're on the field that this is the exact right play call that we need in this situation."
To put Staley's praise into perspective, he has been in San Francisco for more than a decade, soaking in game plans from respected offensive minds such as Mike Martz, Jimmy Raye, Greg Roman and Jim Harbaugh.
As NFL offenses continue to grow more sophisticated with each passing year, the NFC West is fortunate to claim two of the league's most innovative tacticians.