Miami has typically waited too long to find suitable replacement for players getting up in years. Plus, we've heard talk that Suh could be cut, although I don't necessarily believe that. If so, it wouldn't make sense until after the 2018 season. So if the team goes that route after 2018 it would be nice to have another dominant DT in place.
There are a number of really good ones in this draft and who knows what the position could offer in the next few years. I know the organization is constantly filling immediate needs, but looking ahead wouldn't be a bad idea. Same at safety where Jones is getting up there and with Timmons signed for just one more year.