Earlier. I think officially AIPA wrote to QF in 2015 but most 767 drivers at multiple meetings prior to the RIN being published in May 2014 were asking why they were being demoted when within two years of that occurring QF would be in a massive training upswing.
Further to what Keg has said, it was put to management that it would be a smart idea to train the whole 767 crew compliment onto the A330 in rank rather than demote the vast majority. To do so would create a short term surplus it's true, but would avoid the problems occurring now and forecast in early 2014. This has been done in the past as part of a RIN and is allowed for within the agreement.
My understanding is that the nudist changed the goalpost such that the above option was taken off the table when he showed it might cost more than his preferred option to demote everyone.
I guess we can only say we told you so.