Problems: games are too long, DKR-TMS has way too many seats (and I hope CDC's new "rescrubbed" plan includes not adding any seats, removing the SEZ bleachers and putting in suites in its place), kickoff times need to be locked down sooner to allow fans to plan for other social activities/travel.
Easy solutions/low hanging fruit:
End stopping the clock after 1st downs and incomplete passes unless in the last 2 min of each half.
Reduce halftime duration. CFB halftime were longer than the pros because back in the day both bands played. When was the last time we saw the other teams band??? Maybe 1 game a year? Texas/OU let the "home" team band play at half.
People think that the tv networks want longer games; they don't!!! It screws up their schedule. They want a good product that lasts the duration they put on the guide. CBS hates it when the late Sunday game goes long and impacts the start of 60 Minutes. In fact, 60 Minutes is one reason CBS sold out the rights to March Madness to TNT/TBS/TRU (one reason not the only). Now CBS does the early Sunday games during March Madness and it frees them up for no conflict with 60 Minutes.