I wouldn't say Chief's rankings have to much opinion in them at all. He does tons of research on all the kids all year long finding out who beats who and who places higher than who, finding common competition, etc etc. I would say the research he does proves how unopinionated his rankings really are.
As for the shirts, why not? I think it's a pretty cool idea, and it can help get some of our elite wrestlers out for f/s and greco. If Chief's rankings are held in high regard, and a reward is a possible outcome of it, then maybe that incentive can help motivate them to come out and prove themselves during the summer.