The national team needs to start by learning the basics of football

Since they can't pass, they can't build up the play
After two or three passes, there's no one there to receive it
They just kick it long, lose possession, and allow counterattacks
Since their individual skills are lacking, they can't dribble past a single player
Even if the manager draws up a tactic, the players lack the fundamentals
so they can't even advance into the opponent's territory