In the Army it exists: It is called the AC/RC units that are set up to advise the ARNG. There has been heistatnce by the Army to deply regular Army AC/RC brigades and battalions to support the training mission. This has been done in limited numbers. What you have is a sturcture as brigade ready to cover down on an entire division. The upside is that when the unit isn't deployed, it is working with the ARNG. Working with the ARNG involves bringing expertise and recent TTP's to to training focused on tactical and administrative requirements. Granted the cultural and language differences are not close to being the same, but it still is enough to "keep your mind right". As far as JIIM, it is going to be 5 years at best beffore anything on the civilian side catches up in the capacity that we would like to see, and that is best case involving the upcoming election not screwing up needed legislation to make this happen.