Headed into their bye week back in mid-October, the Dolphins were riding on a respectable 4-3 record, but since then they've lost their last three games to drop their record to 4-6.
Miami's offense is pretty bad. Their rookie QB Ryan Tannehill has thrown a combined five interceptions in his last two games, he hasn't completed at least 60% of his passes since week six, and he's currently tied with Matt Cassell for fewest touchdown passes in the NFL (among QBs with a minimum of 200 pass attempts, anyway). Reggie Bush is averaging a little over four yards per carry, but he's the only part of the running game that seems to be working.
However, it would be a mistake to dismiss the Dolphins as an easy win. Their defense is a top-ten unit with plenty of accomplishments to its name (7th fewest points allowed, 5th lowest TD percentage allowed, 4th lowest yards per rushing attempt average allowed). The two defenders to keep an eye on are DE #91 Cameron Wake, who has 9.5 sacks already this season, and LB #58 Karlos Dansby, whom most of you will probably remember from his years with the Cardinals. The Dolphins also have a strong special teams unit with a great return man (#34 Marcus Thigpen) and an even better punter (#2 Brandon Fields).
That said, as long as the Seahawks don't take this game for granted they should be able to fly home tonight with their seventh win of the season. The Hawks are already halfway through a sweep of the AFC East, having beaten the Patriots and Jets already, but more importantly they need to prove to themselves and the rest of the league that they can earn wins even when they play somewhere other than Seattle.