I appreciate that CJ was up there for most of the race mixing it up, and for me personally, I find the race more interesting and exciting when there's an American in the mix (this year there were two for much of the race). Nevertheless, it was very predictable that CJ was going to blowup at some point after mile 21. From a spectators perspective, I'd give him an A for staying up there and making it interesting for spectators for as long as possible. I'd probably give him a C- for actual race execution.
I understand his rationale (downhill is where he excels, etc.), but how many instances will this strategy ever realistically work, especially when forced to run into a headwind at the front of the pack or solo? What's the marathon saying -- the real race starts at mile 20?
I also understand that he knows his body, etc., but I strongly suspect he'd turn out a much better result (maybe top American, maybe overall top 5 yesterday) if he didn't insist on staying at the front of the pack for so long during the inconsequential miles.