Lambert may want to at times change things, but I think a major problem at Villa, is not only is the Manager not very good, but we have a lack of football intelligence in the team, take it from the back, Guzan appears a follower not a leader, Vlaar again to me not a football tactician, Delph may have that missing factor, but I am not sure he is entirely happy with all aspects of his game, Benteke knows what he wants but does not seem to be a major communicator, Westwood to introvert, Gabby , Andi, god have a collection for two brain cells and we would have to have another one to get the second cell.
Chelsea, hate the twat Terry, Drogba and Fabregas all leaders, City Kompany, Silver, Aquero, United had Ferdinand, Vidic and to some extent Rooney.
Lambert has got to go as he is type 3, useless, but I don't think the squad helps and unless tactic A works, there is no one clever enough on the pitch to kick in a tactic B.