Concluded the first friendly of the preseason for FC Barcelona, where Koeman’s debut could not have started in a better way: 3-1 in the electronic and first victory for the youngest . Although there are still several aspects to be polished within the coach’s tactical scheme – when it comes to using his troops – the truth is that we have been able to witness important details of players who will be key in the start of the new barça made in Koeman.