Total guess here but I'm thinking the NCAA has in hand:
- All sorts of information from player interviews on some rather minor infractions involving meals, etc. Mostly tailgate/game day food would be my guess based on the stern "don't feed players after games" memo all tailgate pass owners received.
- The Barz report
- The Donaldson verdict
- Some other statements/info from a few boosters/former players/etc
What I bet they're waiting on is the Johnson trial and if the Dept of Ed or DOJ release any reports in the meanwhile. If you look back at other investigations they relied heavily on other groups reports to help them make their punishment decisions. While it's on a different level if you look back the NCAA slapped Penn St I think less than 1 week after the Sandusky trial ended. They could be looking to move on a similar path.