High Pressing Football that he blossomed with Ten Haag is what he expected with Nagelsman. I thought Bayern also do a smart work signing him. It's possible that he is more suitable with this kind of style. He have a very good physical attributes, pace for it and Bayern need it to partner with Upamecano.
With low block defence style as Allegri, it need a tedious movement, concentration and team play because we already let opponent come to our area.
It looks like Man Utd also get the good work so far with Ten Haag in their pre season. Their aggressive high pressing create a better defence and goal chances even it is in friendly. They beat Liverpool and C. Palace