For 21 years Chris Jones has not only understood the assignment, but has mastered it.
Come up with a defensive game plan. Have your players execute it. And more often than not, find a way to win.
But this week is different. This week, there is one playoff game and two game plans.
This week, the Argos play the Hamilton Tiger-Cats with the winner heading to the 101st Grey Cup, and the Toronto defensive co-ordinator has a challenge unlike any he's faced before.
"You've got to have two different types of ideas and thoughts, and you've got to execute it that way and you've got to know the personnel that's in the game," said Jones, the Argos mastermind on defence. "Actually, it's not just two plans. You need three. Because two weeks ago, they played (Jeremiah) Masoli a bunch. That's three quarterbacks in the same game. Kinda crazy, but they do a great job with it."