A friend and I were looking at the roster. We asked: which players are really any good, players you might want to build around? The answer was these guys: Jake Long, Mike Pouncey, Daniel Thomas, Davone Bess, Paul Soliai, and Vontae Davis. Plus Dan Carpenter and Brandon Fields.
So that's 8 players on a 53-man roster.
If I were a new coach coming in, that would probably set me back. Sure, there are probably another 15-20 players who you might argue are "good enough" or "serviceable" but that's still less than half of a roster. And of course a coach generally likes to make over a roster in his own image.
In all, that means there are a lot of holes to fill. And its going to take time. I wouldn't be surprised if this team wasn't very good for at least another 5-7 years. And that means the new coach - whoever he is - has to be committed to a TEN-YEAR plan. Needs to be in it for the long-haul.
It hasn't been fun to be a Dolphins fan in the last decade, and it's going to stay that way for at least the next half-decade.