BA's productivity levels are renowned for being dire, but has anything changed? No. No frills airlines are coming out way above "established" carriers, like BA, when it comes to profitability and productivity and even customer satisfaction. BUT, my opinion is don't kick the cabin crew and pilots at BA because it is the system that is at fault and the "system" allows them to get away with privileges that ultimately are running the company into the ground.
Just tossing a coin to see whether my flight with BA will be canx because of the crew! Heads or tails?