Having been involved in such projects on the corporate level, I do agree that driving efficiency and reducing costs, even when everyone wants and tries to do them, is rather difficult, and very slow to implement. However, once you go down the track and commit to it, a major benefit is it raises the awareness of the importance of frugality and efficiency, and future projects do become more efficient. So maybe if you cannot make a huge dent like $2T, it could help slow down the increase in deficit.