Caruana, So, Naka and Kamsky would make a great team that would be competitive. But Russia, Armenia, Ukraine, and China all have teams that are deeper than anything the US can post, and just about as strong.
Still, it'd be fun to see how well our team could compete against the best with that line up.
With 2 of the world's top 10 and 3 if Caruana switches, plus Kamsky and Shankland, who had a stellar performance against top international competition in his last tournament (though I wish he had not beaten Judit Polgar for her last game before retirement)...the US only needs one more "money" player to have a perfectly viable shot at gold.
P.S. Nakamura will be passing Caruana on the ratings list if he has 1 more good tournament. Don't discount him (funny to see people dismissing #3 in the world as an also-ran)...the arrival of Wesley So on the US scene seems to have lit a fire under him.