My two cents: I'd like to see the AD ask Richey "What can we do to give you the opportunity to be Furman's Bob McKillop? What would you need to become the Paladin's equivalent of Mark Few?" And if he's game, and if we can cover those desires, even over the course of several years, we should go for it.
If somebody told me 95% of mid-major coaches wanted to move onto Power 5 schools, either to push themselves at the highest level or for more mercenary reasons, I wouldn't doubt it - but it's not 100%. There've been Furman faculty who could have moved to Ph. D. schools, with bigger salaries (not ACC head coach salaries, but still), better facilities, lower teaching loads, access to grad students to crank out more research, etc, - but they stay at FU because it's the right fit for their goals as educators.
When I hear Richey talk, I get the same vibe in him - he loves his players, he loves developing them, and he's comfortable in the special environment so many of us have experienced at Furman. If I'm correct in that read,
the job of the administration is the give him a reason to expect he can fulfill his highest professional goals in a mid-major setting - because that in fact is something that can be done with the right person in the right institution.