CGC was announced as head coach Dec 7, 2018, so I assume that’s when his contract started. To fire him this year, would leave about 15 days of this year ($3.2M) and his last 4 years ($13.8M), for a total of about $13.932M.
Firing him immediately after the u(sic)ga game next year would still technically be within his first 4 years, so he would still be guaranteed the full remaining amount, or about $10.5M. But waiting a week or so until his 4th year is over (Dec 8, 2022) would mean he’d only be owed $2.4M per remaining year, so the buyout would drop to $7.2M. That’s a $3.3M savings to wait a week, so keep that in mind if everything goes poorly next year.
Day after COH 2022 - $10.5M.
Dec 8, 2022 - $7.2M.