The US has mariners who work on liftboats, and are there no dp3 vessels in the us fleet? There are also US nationals who work on foreign vessels, chances are there are 1 or 2 that have been working on wind farm vessels and would come over here to work. Who’s to say the US can’t figure it out? Someone figured out how the first dp3 vessel, jackup rig, wtiv etc. works with no experience. Silly to assume people living in North America are unable to learn how to operate wind farm vessels