I really like the theory ... but I don't know if the execution will work. IMHO, there's a top eschelon of OT's, and while it is likely that one falls to around 15 or so, it is very iffy whether one lasts until 18. At 26 it's a bit of a crapshoot on whether you will get a starting OT or not, and probably looking at 2nd tier guys at that point. There's a lot of conjecture, but the top tier of OT's looks to be some order of these guys: Jedrick Wills, Tristan Wirfs, Andrew Thomas, and Mekhi Becton. Pick your style, each of them has their fans and detractors, none is a sure-fire prospect, but that's the top tier. Of that group, I'm hoping that Andrew Thomas drops ... he probably has the highest probability of success, but not quite the ceiling the other guys have. Higher floor, lower ceiling, which is why he might last until 18.
After that there's a drop off, and the second tier probably includes some ordering of: Ezra Cleveland, Isaiah Wilson, Josh Jones, Austin Jackson, and maybe Lucas Niang. Again, different strokes for different folks. Again, I like the guy who is least likely to bust, which is probably Ezra Cleveland. Let's face it, the Dolphins chances of finding an OT who does not bust, are low. So, I'm going to go with the solid choice over swinging for the fences along the OL.
Maybe we get a tier 1 guy at 18 ... probably we just miss out like we just missed out on Zack Thomas and had to settle for Ju'Wuan James ... remember him? Zero Pro Bowls, lots of injuries, drafted shortly after Zack Thomas the All-Pro guard. I see a similar scenario playing out at 18, so if we move up, it might be from 18 into around 13j-16 range to get a top tier OT.
At 26, we're likely going to keep that pick or trade back. We might get a second tier OT at 26, or we might be able to trade into early round 2 and get the same guy ... hard to tell. Those look like the options for getting a starting caliber OT in the 2020 season. Some other guys may develop over, but they'll be later in the draft.
Personally, I think we need to prioritize the OL a bit, but I'm only looking to add a LT (or same guy playing RT if we draft a leftie QB).
But there are a lot of other options, and maybe taking Xavier McKinney at 18 or 26 makes more sense? There are some good C's that will go in round 2 or possibly 3, and we should come out of this draft with one of them. We definitely can pick up a couple of guards in the mid to late rounds.