The illogical disconnect in 2003 was mind-boggling: we couldn’t have BOTH a light US/Coalition force footprint AND abolish the Iraqi military. The DoD dictated the former and the State Dept. dictated the latter. It was a recipe for disaster, and this is not 20/20 hindsight. I said so at the time, but I’m just a middle-aged keyboard babbler.
This time, we weren't clear in what we were doing after we took out Saddam and since then we had to improvise what we are doing in Iraq which is not what we planned for.