QFT.
Logos need to be changed when the entire franchise needs to be revitlized. This is not the case for KC. NE's flying elvis, the Buc's and Broncos abandoning thier "orange crush" style uniforms, and the NYJ return to the classics are all good examples of changing the look and the culture. I disagreed with the 49ers new look and still prefer the 80's style. The Lions already announced a new look, and ATL redid thiers not too long ago. I dislike how the rams turned out. I think they should have kept the yewllow and not gone to gold, but the rest is fine.