I disagree. A lot of little things come from playing together regularly. It's why international football tends to be sloppy, and probably why national team managers tend to be reluctant to change players when it seems obvious to an outsider that they probably should.
Part of why the Spanish national team was dominant for so long was that the engine room played together week in, week out. It wasn't just the quality of the players. It was that they knew exactly where they needed to be, when, to both maintain possession and progress the ball.