First off, let's dispel the idea that Miami is invincible away from home. The Dolphins are 4-0 on the road, but the four teams they've beaten – Bills, Vikings, Packers and Bengals – are a combined 9-20. The Packers are the only good team they've beaten, and it took an overtime field goal by Dan Carpenter to accomplish that. Last season, Miami was 3-5 on the road.
The Ravens have won six straight at M&T Bank Stadium, and under John Harbaugh, they have dominated at home. Since 2008, their defense has allowed just 12.8 points a game and an opponent passer rating of 60.5.
So don't expect a hostile takeover on Sunday. Won't happen. The Ravens can lose to the Dolphins, but it won't be because Miami has a magic elixir to win on the road.
If it happens, it'll be because the Dolphins are a virtual mirror image of the Ravens. They play the same kind of physical, brawling defense. They have the ability to run or throw on offense – also physical -- and they've got a third-year quarterback in Chad Henne learning on the job.
They are similar in style, substance and most statistical areas, including turnover ratio.
The one difference is that the Ravens are coming off a much-needed bye week. Can they correct the pass-coverage issues that cost them in New England and almost cost them against Buffalo two weeks ago? That is the big question.
In their last three games, the Ravens have been scalded for 948 net passing yards, an average of 316 a game. Henne has five 300-yard passing games in 20 career starts. It is a good test for a secondary that played well the first four games of the season.
The answer to the question is the pass rush. To date, the Ravens have had bodies flying around the opposing quarterback, but when it matters most, they haven't been able to get there. That has to change soon if the Ravens are going to go deep into the playoffs.
Harbaugh said on his weekly radio show last Tuesday that the Ravens were still working on new blitzes at midnight on Monday. That's putting emphasis in the right place. If the Ravens can't get pressure with their four-man front, then it has to come from the blitz. And the blitz hasn't been able to finish so far this season.
New blitzes could feature Ed Reed or Ray Lewis, both effective in that role. Or it could be someone like Jameel McClain or Dannell Ellerbe who gets turned loose in a new scheme.
I don't know how well wide receiver Brandon Marshall will play against the Ravens, but if they don't get to Henne, expect him to turn lights out on this embattled secondary.