Actually after the last war in Lebanon the notion of "static defense" having no chance against a modern mechanized/armored army + total air superiority + high tech information gathering, took a blow. Of course that does not mean that we must rewrite the book, so to speak. The Hezbolah didn't build a "Maginot" line, they used "hit & run" (or hit & hide) tactics but they presented a form of "static" defense network in the guerilla sense, at least that was my (amateur) impression at the time. I'd really like some more "informed" feedback on this.
On the other hand even the most advanced army needs good and determined leadership and above all a plan (has anybody understood what did the IDF want to accomplish operationally? and I don't mean the whole plan eh!
).