For A/Es, the level of worker interaction is low. Their interest in ensuring construction quality is best served by occasional cursory monitoring of the work in progress and discussions with the GC or occasionally with a subcontractor foreman, not with the workers themselves. Again, a subcontractor would complain if an AE were substantially interacting with the workers because it would hamper productivity. Model General Conditions, such as the AIA 201, explicitly state that the A/E shall not be responsible for supervising the work or directing means and methods (Toole 2002).