This is his preferred formation, which actually is giving him very good results with number of scores each game. Constant attacks - goals from back defenders, MCs and ST each game. I guess he is using whole pitch pressing style because game is intense, huge possession, so probably he backed his AMC. He makes a lot of counter attacks, but I doubt he is using other than Attacking/hard attacking mentality.
I even tried it on my own guessing how it should work and it gave me a decent result.