I'm not very optimistic this year. Except for Grimes and Jones our entire secondary is either new or unproven. Finnegan and Delmas might play well but they have to stay healthy. Losing Soliai hurts the run d a lot. We're essentially left hoping that our linebackers and young corners improve in order to not have a worse defense this year, and I am quite skeptical about both.
Except for Pouncey our entire o-line will be new; consisting of two rookies, a below average free agent, and a veteran who just got a big pay day. Not usually a recipe for success. And while I would agree it can't be worse than last year, being better than last year alone might not be good enough to get this offense on track. And even if individually they are far superior than last year, they are starting a new system, it will likely be a rough start regardless.
Our #2 and #3 WRs are coming off knee injuries as well. Hopefully that will not be an issue but we will have to wait and see.
We also have a bunch of new coaches working together for the first time.
I AM excited about Clay and Matthews though. Clay broke out last year and played extremely well. My only worry here is that he will attract more attention from the defense, so we will have to see if he can continue to play at a high level with the extra attention. I am optimistic about him though. I am very high on Matthews this year. While it's true that he has been inconsistent he is entering that WR third year breakout.
Tannehill has steadily improved each year so far. Since even this year will only be his fourth full year playing the QB position at all, I think it's reasonable to assume he will continue to improve. If he can specifically fix his deep ball he may break into the top 10 QBs. The running game should also improve simply because it can't be worse. However, once again, have to ask how much better will it be? Yes we got a better OC for a running game and a solid RB but it all depends on how well that new o-line can run block.
On top of all of that, the dolphins have a rough schedule this year.
I'm not about to say the Dolphins won't be a playoff team, they can be. But they need a lot of things to go right and they need them to go right quickly.