I think Deion was fine at Colorado this year. Would probably give him a B just like I give Key.
The issue for Deion is I think he has to really start to build the base more sturdy. He brought in a ton of transfers but ultimately he needs to stregthen his base - especially his line play.
At first I was thinking Colorado's schedule would be much easier in the B12 next season, but looking at their game matrix i'm not so sure.
They play North Dakota St - one of the best FCS teams in the country, and have to go to both Nebraska and Colorado State next season (who they had at home this year).
In conference they have 5/4 home/away conference split next season with home games against Utah (with Cam Rising back), OK St, Kansas St, Baylor and TCU. Road games at Arizona, Kansas, TX Tech, and UCF. If he can improve both OL and DL I could see 6-6 next year, if they are not better than 4-8 would be a possibility again.
Of course we get to see Colorado in 2025 and 2026.