It has to be frustrating for the players to see Scully, Shiels and Farmer consistantly making the same mistakes over and over. As I've said they aren't even small mistakes they are blatant bad decisions that are being made.
I get the feeling they go out with a game plane to beat a team. If the tactics aren't working they get so baffled that their brilliant tactics that they have spent all week devising aren't working that they make worse and worse decisions during the course of the game and don't let there common sense take over.