^Starting XI's play for those clubs, gives you a better idea of team strength.
Looking at the quality of clubs/leagues the players are coming from, USA doesn't have that much of an edge, they have 2 players starting from mug leagues, Paraguay 2-3 players. Attacking players for USA coming from better clubs but even then it's not exactly vintage Juventus or Milan sides. Monaco/Strasbourg 7th and 8th in their league.
Paraguay beat Brazil and Argentina in qualifying at home and only narrowly lost to them 1-0 away, took 4 pts off of Uruguay as well.
Disadvantage for them is USA has home advantage but would not be surprised at a draw or even Paraguay win especially if America takes them lightly.