Poppycock. Cain’s team didn’t know what precisly the Politico article was going to say until it came out. They made the decision to not respond to anything publically until they knew what they were responding to.
Which in this case was a bunch of vague, unfocused charges from unnamed sources. Now as to the rest of your analysis, time will tell. His campaign may indeed not be as skilled in running a ground game as Romney’s for instance, but they’ve accomplished quite a lot in a short time. We shall see, but I won’t write Cain off yet.
My last CEO used to call it non coherent rambling. It is quite common.