Just like in our secondary schools, the vast majority of college-aged transmission is coming from the students engaging in risky behavior outside the school walls, outside the locker room, and outside the field of play.
We were never going to be able to stop them from having house parties and sharing beer bongs and drinking tequila shots out of one anothers' ass-cracks. But the sport itself was never going to be a major spreader, and even the fans in the stands don't appear to be contributing much to the spread.
Like we've been repeating for 8 months now, maskless indoor gatherings are the most risky events.