Defined Benefit Schemes
Many final salary schemes are in fact fully sustainable - see here for example:
http://www.bbc.co.uk/news/business-41412498
I see no reason to close the EDS scheme. After all, despite what they have said, there are many people whose pension arrangements cannot be changed (people transitioned in still working on certain contracts) and so it is not true that this move will harmonise all pensions.
My main gripe is that AVCs are dealt with in a different way in the new scheme and cannot be taken out independently from the main pension even with a drawdown mechanism....