We're going to see some fierce battles on the offensive line IMO. Miami will draft a few early and we could see 3-4 new starters from a year ago. Even Deiter shouldn't be guaranteed a starting position.
Even though it's a relative strength, I wouldn't be surprised if the Dolphins added a slot receiver and some competition there.
Then there's the quarterback position. If Miami drafts Herbert, he could actually challenge Fitzpatrick sooner than expected. Tua would likely sit longer because of his hip injury. Love would sit. Burrow, if that trade is made, probably starts game 1.