WOG, it is true that the departure of staff helped with the new AWA in that company. However there were some other contributing factors such as severe housing shortages plus the fact that they actually make a substantial profit and could afford to give a little bit more. There were also some significant concessions given by the employees. Still, the role played by the competition was valuable.
P.S. Don't know if you got my dog's PM to you, the website was playing up at the time and he was having trouble with his mitten paws and the laptop keyboard, but I'm afraid we won't be attending your thingo, you'll get official word via snail-mail and telephone.
Cheers.