The news broke this morning that Marcus Mariota will not play in the Tennessee Titans’ regular season finale. Many fans are disheartened at the loss of Mariota, but — with no disrespect to him or backup Blaine Gabbert — QB play might not be the most important factor for the Titans on Sunday. As evidenced by the 38-10 shellacking the Colts laid on the Titans in November, the real key to victory will be slowing down Colts QB Andrew Luck and the rest of the offense; because if the Colts put up 38 points again, it won’t matter who is under center for the Titans.