Most Brazilian fans are pround because their team right now wins almost every match 3:0, but you make a very good point there: all other teams are experimenting while Brazil always plays with the same players. Sure, some of them were on bench or not even in the team in the last years, but as for now this is the best team they have available...for example Guidetti explicitly says that the results in this period of the summer don't count for him at all, the only important thing is to evaluate players and different tactics, and it's obviously the same for Japan and Italy...