One of the keys to the Miami game: Tackling in Space

Beyond the obvious talking points for any game (turnovers, trench play, special teams, etc) -- I feel "tackling in space" will play a bigger role in this game than normal.

I assume both defenses will be in attack mode on passing situations. But both teams have QBs who can buy some time with their feet, and can get the ball out in the flat to a RB (avoiding the sack). I am thinking this may occur 3-5 times for each team over the course of the game.

Based on that, which secondary will do a better job of keeping these completions to a 7 yard gain -- versus -- whiffing and allowing the back to reel off a 30 yard gain? Of course, this situation isn't just about the DBs; it also involves which team has RBs who can do a better job of making people miss?