I don't think Deion is a shitty coach, probably still too early to say that. he did take over one of the worst P5 teams ever, and in Year 2 had them 9-4 overall and 7-2 in conference play. that's no small feat to be honest.
it's not exactly like he took over a great program. Colorado was in shambles. they are off to a shaky start this year but he also lost a lot from the year prior and hasn't found a QB yet.