those who do 8 sector 3 day, and 6 sector 2 day trips
Welcome to our (BA pilots or any other airlines crew, by which I mean flight and cabin crew) world. Or how about 4 day 14 sectors or 5 day trips with loads of sectors. These are common place for us.
If the crews are being made more efficient then the head count can be lowered and BA have to pay fewer people.