Remember that our CongressCritters pretty much get to specify how and under what conditions our military gets to spend money. Depending on how the appropriations bills have been written, money may or may not have been included for ADS upgrade/integration when it should have been. Inter program transfers do happen, but there is lots to deal with to make it go thru. While it is being pushed as a worldwide solution, only the US and some European countries have even adopted ADS standards so far.