My main point is that the best strategy is not to ask other agency contract specialists and KOs only. To do so implies that they have dominion over contract cost growth, and I do not think that they do without a partnership with the program/mission folks.
Think of it like a marriage. Mom owns the checkbook, but Dad keeps spending. You need both parties to devise the solution. Our acquisition professionals set the foundation by using the proper contract types, and the COTR/CORs then drive the cost savings through quality assurance surveillance, award/incentive fee monitor, effective use of EVM, conducting meaningful IBRs, etc.
I think the contract part only gets half of the way where you are trying to go . . . .