What do you view the “key to victory” being Sunday?

There is a few obvious ones like O-Line or secondary but just curious what the consensus is. I’d lean O-Line as I think the D Line is good enough to ruin some drives even with the secondary being banged up. If lions o line can hold up I think they’ll control the game. If they can’t I can see this being a very close game that comes down to who has the ball last. Curios on your thoughts.