Gronk isn't very bright.
As much as I love Dion Jordan, I don't think he's any kind of "Gronk Stopper" perse. NFL has slanted the rules too far in favor of the offenses. They've all but taken the truly great defensive players out of the game. I never understood why Jet fans were so enamored with a guy like Revis. The NFL handcuffs these guys. TE position is running rampant in the league. Dion Jordan still gives up some size to Gronk as well. It's virtually impossible to stop a guy his size when he gets going. Dude is 6'6 265lbs. Part of Jordan's appeal is that he's a hybrid. Dolphins will show their hand if they assign Jordan to be the "Gronk Stopper" rather than disguising coverage for Jordan. It's an interesting thought, I just don't see it going down how we'd like to see it go down.
We're talking Belichick, Brady and Gronkowski here.