My point is I can't see how this would change under a new manager, not without massive investment in the team and by massive investment I mean completely destroying and rebuilding from top to bottom. Sanchez aside there's not one player at the club who deserves to be part of a title winning side currently. That kind of mentality and skill costs money the board either doesn't have or won't invest.
A better manager won't make Arteta and Flamini less shit, they won't stop the rot with most of our players and their sideways passing its too ingrained.