New boundaries also posing problems for Labour
The prospect of brand new boundaries is also posing big problems for Labour, quite apart from the likelihood that the party will lose seats as a result of the process.
According to Ann Black's account last month's National Executive meeting actually discussed the problem of not being able to pick candidates until the boundary review is complete.
One idea the NEC considered was instead to let local parties identify "parliamentary spokespersons" or "campaign leaders" for existing seats, to fulfill many of the between-election duties normally carried out by candidates.
But some MPs on the NEC were unhappy that these new local champions might then have an unfair advantage in the process of choosing new candidates for the reduced number of seats.