I think Richt will have similar talent at Miami, and he no longer has to compete against SEC competition every year.
Let's face it, the ACC Coastal really isn't all that impressive of a division. VT, Duke, UNC, Miami, UVA, Pittsburgh...GT. Is anyone scared of any of those teams? UNC will be losing their starting QB who doesn't get as much credit as he deserves, so Fedora may be taking a step back. VT just hired a new HC, and time will tell if that was the right guy. Duke looks to be regressing to the norm. UVA...is UVA. Pittsburgh has gotten better and could be a player. We have our own issues, and both Miami and Richt have had GT's number since CPJ has been here. Putting them together doesn't make it easier for us.
At minimum, Richt could turn Miami into a dominant team in the Coastal. Miami still went 8-4 this season even with all that turmoil. There's talent already there, and there's a TON of HS talent in South FL. I think he could have Miami a consistent Coastal champion sooner than later.
One thing is for sure, it's a LOT easier running through the ACC than it is running through the SEC.