It is also interesting that you can date the sudden upsurge in TIBA almost to the day of the last SDE changes. Before that, TIBA was almost unheard of.
One of the few occurrences was in the mid to late 90's in the old Melbourne Centre - there was a social function organised by the Team Leader for those sectors that went TIBA and no replacements could be found for the controllers who went "sick" on that particular Saturday night. That TL just happens to be a current GM.
What is particularly galling about the current situation is that 2nd, 3rd and even 4th level managers who not so long ago were willing to partake of the sick leave entitlements available to controllers are now the most vocal in condemning current controllers for exercising those entitlements and, indeed, obligations.
Looks like it is now "two legs good, four legs bad".