Can I thank the Minister for that response? Invest-to-save is a project I've consistently supported. Using investment to produce long-term savings by greater efficiency will increase productivity. This is the way forward for the public sector, assuming we're not going to have infinite sums of money in the future. Will the Minister comment on the success of invest-to-save and how the learning from projects is being copied by other organisations? As we've seen far too often, in Wales, everyone has to discover the benefits themselves as if it was for the first time.