I suppose that my definition of Fighter IQ is more than just the creation of a gameplan, it's the implementation as well. Andrei Arlovski, and Keith Jardine usually come up with great gameplans. Arlovski especially is notorious for sticking to a gameplan and usually winning the fight up until he throws it out the window. It happened against Fedor, Kharitonov, Rizzo, Rodriguez, Sylvia, and Bum Rogers (copyright, Roflcopter). Jardine does the same thing, especially in his fights against Jackson, Bader, and Hamill, fights he was winning on the scorecards until he tossed the gameplan out the window.
Kampmann came into the fight with a good gameplan, but couldn't stick with it. He got undisciplined, and let himself get drawn into a firefight with a berserker. To me, that's showing low fight IQ. coming up with gameplans is only part of it, sticking to them is the bigger part.