If It was me in the MOD as Sec State for defence.
1. Cut down the civil service support for the armed forces and strengthen areas like procurment with people qualified (professionally qualified to do day to day purchasing). Remove the political appointees ie special advisors and curtail the use of management consultants.
2. review the employment of undeployable personel and modify the pay structure to reflect this. using the same formula as is used with reservists on FTRS.
3. Use long term secondment of service officers to procurement projects. Increase the power of user opinion in the procurment process. Purchase more of the shelf.
4. Change the relationship of the Service chiefs to the government by re writing the job descriptions to try and remove the political yes men mentality.
5. Try to get a balanced, long term and integrated approach to defence. with balanced and flexible forces.
6. End PFI procurment of items like Arcraft and Ships.