they did make a tactical adjustment. They went with that tall forward, Moore, who had about 10 inches on the guy he replaced, and they started going with more balls in the air into the penalty area rather than dribbling and possession passing. They seemed a lot bigger than the US.
Another story questioned the USA fitness which makes sense since they have some players who have been out with injuries and Pulisic who does not play much with Chelsea. Looked like they ran out of gas.