I have got no idea what he is trying to do. Koeman has created a system where, despite 6 defensive players on the park the opposition have acres of space in wide areas and our full backs are totally exposed. Players who can carry the ball forward (Vlasic, Davies, Sandro, Mirallas, Lookman) are mostly unused or used ineffectively and as a result we are so pedestrian with the ball that we have no cutting edge whatsoever. The buying strategy seems to have been to get what look like good players but with no thought to how they will play as a team.
In reality, we have lost Barry and Lukaku (sold) and Barkley (injury) from the team that lost only one game at home last season yet instead of maintaining some continuity, we have made changes all over the park. Due to Europe, we've played quite a few games now but I can't see any discernible pattern of play or understanding between players developing.