The IDEA program is good for small stuff, but it doesn't have much of an effect on airplanes, our bread and butter, or other devices. Devices attached to planes have a rigorous process which includes testing, writing operations manuals, troubleshooting, and incorporation into AFIs. None of these options are cheap.
My experience is that, if it is serious enough, they can move mountains, but if it "merely" costs money and cost savings are relatively minimal, it won't be implemented.
Additionally, a lot of the improvements are in the classified realm and the IDEA program doesn't accommodate those.
I personally believe that too much effort is being put into the "latest and greatest" systems at the expense of some cheaper systems that would work just as well in most situations.