the problem is that the standby crews that EZY would normally have active at this time of year are away being trained on the airbus, this includes both flightdeck and cabin crew as far as im aware,... so last week when there was 2 aircraft that went tech and created big delays that threw everything out of balance and messed up crew hours, currently EZY are using staff from other bases when there are problems with crew hours, but they are not staying in Belfast, instead being brought in on flights when needed...
who knows why it was left so late to train them could be poor planning or waiting for a space on courses or something else..