I am of the generation that had its competitive time in the 1970s and 80s,and this is typical of the generational theme that says "we were tougher in my day." Let's get off Ritz. To this gentleman's argument, if Ritz were racing in the marathon in the 1970s, he might not have the Nike "gadgets," whatever that might refer to, or the financial support, but he'd also have been a world class marathoner with times three minutes slower than what he ran ihn Chicago last year.
Bill Rodgers was a great competitor in his day, and he could run road races week after week and keep getting paid by outkicking guys because he ran in a different competitive era. Frank Shorter, another legend from that era, was ranked No. 1 in the world more than once and had a lifetime PR of 2:10:30. As others in this thread have pointed out, if Ritz goes to Chicago at 98% fitness, he gets his doors blown off, he risks further injury and the loss of an entire season. He's not in the middle of college cross country season. It's unreasonable to expect the guy to put a Band-Aid on it and suck it up for the team. It's 2013, Not 1973, he's proven himself a tough competitor in world class competitions, and I'm not going to second guess the guy.