Rolling roof though would have gotten us a Super Bowl and Final Four. But overall I agree. Football needs to be played outdoors. I do love how Sporting Park was built with cover for the fans, but not the field. Lots of rainy games at Arrowhead where being a fan is brutal.
I don't know if it's feasible to invest in a rolling roof that will bring in a SB sometime in the next decade. Too much investment and the weather in Arrowhead is actually a plus for the Chiefs later in the season. QBs from warmer climates tend to fail in bad weather and QBs like Brady or Big Ben have been using that to their advantage for years.
I like the idea of a roof to cover the fans as it also helps create the atmosphere.