According to this article, there are 10 remaining scholarship players from last season.
https://coloradobuffaloeswire.usato...st-season-still-with-buffs-colorado-football/
FWIW, I think Colorados move to the Big12 is a good move for their athletic program. Mostly just because the PAC 12 is a sinking ship. After today, it's the PAC 9. It will likely lose more.
As far as how it impacts Neon Deon and the fighting "Prime Times", presuming their schedule shuffles starting in 2024 to include a lot of Big 12 teams, things will be a helluva lot harder. In recent history all of these teams have been very competitive with the exception of perennial doormat Kansas which is showing improvement.
Baylor Bears
BYU Cougars
UCF Knights
Cincinnati Bearcats
Houston Cougars
Iowa State Cyclones
Kansas Jayhawks
Kansas State Wildcats
Oklahoma State Cowboys
TCU Horned Frogs
Texas Tech Red Raiders
West Virginia Mountaineers