Pardon the semantics, but I don't think that's possible.

We only run into problems when we erroneously define force protection as armor, big walls, etc. that we think segregate us from the threat but instead fix us for them, and isolate us from success.

As opposed to preservation of the force in order to accomplish the mission, with that preservation and all good things achieved through HUMINT, immersion in the population, etc.

We are at that same point where the brave knight was, sick of seeing his compadres drilled by cross-bow bolts, who thought it is time to nude up and get more mobile.

Also reminds me of that scene from the Full Monty - "I didn't think they could be too big."

Force protection is not something you can never have either enough or too much of. It is just something you always need more of, but must always stay IN SUPPORT OF the mission. And must not be poorly "provided" in sophomoric, counter-productive ways.