Yes, because IF coaching sliders really impact the game they DO change some aspect of it. If a team shoots only from distance it will get almost no fouls called. Coaching sliders are part of a roster set, so changing rosters changes the game.
But again... if coach sliders tell a team to shoot only long distance shots and some players in that team have the tendency to shoot only close and inside, what really happens? And AGAIN with tendency sliders we modify palyers tendencies (adding and cutting from their original values)!
Sometimes I think that this game has so many numbers and variables and half of them are useless :-)