Yes, this is something every soccer fan knows. Also, the world cup is every 4 years and it's difficult, if not impossible, to predict how a renewed team will work. You can make a cluster of few teams that will win in 99% of the cases but not optimize much more from that.

If someone wants to know why it's so difficult, look at how a single player can change the whole game: https://www.youtube.com/watch?v=KY40__rBvSk