Additionally remember that management controls the interview process of line pilots trying to become PIs. So, when the Union says "in case not enough pilots are interested" remember that actually means in case the company doesn't want to hire expensive line pilots when they can just actually hire inexpensive retired pilots.
This is a total Scope give and we will have given the control of how much scope entirely to the company with no restrictions other than having to advertise the jobs every two years only to have the company say not enough "qualified" applicants applied!!!