The space between the lines: Inter vs Atalanta

Inter's shape against Atalanta last season showed something worth watching. When Atalanta pushed their full-backs high, Inter's midfield dropped to cover the half-spaces. The passing lanes to the wing-backs disappeared. -1

Look at the distance between units, not just the ball. Atalanta's centre-backs had no short option. They went long. Inter's centre-backs won the second balls. -2

That repetition tells you more than possession stats. A team that compresses space between defence and midfield forces mistakes. You see it in the first ten minutes. -3

One shape tells you more than thirty passes.

Question: Where is the space between midfield and attack when a team plays with a high line?