Because they have the right quality in the right areas. Defend and give it to Griezmann...he's gonna make the right choices. They've always had great attacking options for years.
And "Not coached" in attacking is up there with when Ancelloti didn't "coach" us. They do work on attacking, they also work on situations. They don't just do defensive drills every week.
But if the players don't have the instinct or skills, it only gets so far. The 4 on 2 today was an attack of Broja, Doucoure, Mangala, and Harrison. No coaching manual in the world needs to tell them how to at least get a shot on goal there. Yet it happened.
Which is where we are. 1st, get in good areas, 2nd get support, 3rd make the pass, 4th score. Regardless of manager, with the players we have how confident do you really feel when we get to the 4th point?