The Spams have a 'Fraud, Waste and Abuse' hotline across the US military - might even be a government scheme - and I've always thought something like this would have mileage, as well as a 'good ideas hotline' which bypasses the flawed thinking that rank equates directly to having the best ideas. Something broadly like the latter was circulated in about 2001 and ideas did seem to be pushed upwards.
I also agree entirely with financial longtermism as opposed to the annual panic budget holders seem to go through every March. Why a budget holder can't save up for a wanted item over several years is beyond me - perhaps the missing link is cash needs to be properly allocated as opposed to fully spent each FY.