I disagree; but this year and next year will tell the tale of the Miami Dolphins.
In my opinion it will either be a climb to respectability or a limb beyond respectability, to superiority. I don't know which one it will be, but based on what I've seen the last two seasons I'm pretty sure that respectability is the lower probability.
This is seldom done and maintained in less than 3 seasons after a significant change in the FO and coaching, 4 seasons if you consider the initial year where teams are stuck with their cap level, players on the team and whatever draft positions based on previous management & coaching.