Modric is a "top 10 player doing it" talent, Rakitic and Perisic are great when they're on their games and Kovacic is the hype/hope that just hasn't materialized yet. After that? Mandzucik couldn't beat a training cone in the open field and their best defender is Liverpool's worst. Things get even thinner from there. It's a myth that "if Croatia were fresh" they would be better than England; England may only have one or two great players compared to Croatia's 3.5, but they have extensive depth and cohesion.