Well since people are resorting to name calling (that's you TU154) it's time for some tough love...
I can tell you one of the real problems is pilot duty time, requiring more and more pilots, but the offshore guys won't like hearing that.
The duty time rules are written by pilots for pilots but it just jacks up the number of highly paid pilots in the company so at the first sign of a slump the pilots become great ways to save money.
All I hear is "we want more money and less duty time. "
Add to that the militant unions and you have a spoilt brat mentality, which is what the North Sea is famous for..
Do you really think there will be helicopters grounded for lack of pilots to fly them?
No, meaning there were too many pilots to start with.
Duh..