Winning long-term is difficult. That's the real challenge. I love the moves Miami made in free agency, but most are on on short-term contracts.
There's a bit of a catch 22 there. If a player performs well, like Ogbah, his two year $15 million contract is a bargain. But he will deserve to be paid after 2021. Same with some other players.
So, while the Dolphins continue to put the finishing pieces together (offensive fire power mostly), the challenge will be to keep good players, or identify cheaper solutions.
That's going to be the next step for Grier and Flores. Fortunately, the salary cap with such a young team should give Miami the time to build.