It is very simple really. Ryanair had a bunch of pilots stalled in training which was a mess last winter 05/06. The previous management left or were fired. PB came in with a new team.
The training dept is fixed, rostering and got pilots back on line. Now they are managing to the last hour each pilots roster individually. They have pilots now to cover new a/c and the plan is that each will work 70 hours a month until March. Simple really.