I agree with you on this, sometimes it takes time for a football club to adapt to a new coaching style of a new manager, I think Liverpool may find it very difficult to scale through next season, although we know them to be a good team, however, lets see how events unfold now that a new manager is fully in charge of the team, as for arteta, i think he is a good manager, his team performance last season was good despite that they were unable to win the trophy, Arsenal will have to figure out how to maintian their lead once they are toping the league table in other to win the English premiweship title, although we can't dispute the fact that as far as the English premier League is concern, Arsenal remains one of the major contenders in the league but in as much as we don't know who will lift the trophy next season, I still beleive that Manchester city is the best team in the English premier League and can still win the trophy again this time unless arsenal will have to prove that fact otherwise next season.
Everyone have their system of coaching and the team have to learn to follow the new coaching strategy that the new coach is coming with. The case of Liverpool and Chelsea its going to be difficult one for them next season since they are adopting new way of playing it will take a little time for them to fully master the new way of playing. Sometimes it is usually not that way because with a new coach they might become more on fire and it will be difficult to quench because i remembered then when we got a new coach that is when our game changed and am talking about arsenal and sincerely arteta have been an amazing coach to us. Arsenal actually struggled but they are still in the process of regaining balance and I just have a strong belief that we are going to do better. Anyone can top the table the most important things is winning the trophy which my hope is been restored that we can win it, arteta just needs be serious with our signings and from their we can make good advances. Everything is going to be a plus very soon, I trust arsenal that much.