Build from the back. If goalie and defenders poor you loose a game no matter how well the rest are playing. When paying SA teams you must have fast, physical players. The forwards will do fine in any combo if team is aggressive and pumps enough balls to them. All said, I would send a team of under 20's and 18+17s to Russia to gain experience. The rest of the players can maybe get out of CONCACAF but they are just not good enough.