he idea that moving Adams to right back hinders him in some way is wrong (at least philosophically). It’s the opposite; it provides him the most freedom to impact the game in the most ways. If the defensive midfielder needs help in possession, Adams can move inside next to him; if the wing needs an option to create a numerical advantage, Adams can split wide; if there’s a cross coming into the box, Adams can make a late run.
Yes, Adams could be used as the controlling player to start the possession. Yes, he could be used higher on the field to play around the box. The hybrid right back spot allows him to do both. Berhalter is trying to unleash Adams, not hinder him.
It might not the be long-term answer, but it’s absolutely worth trying.