For many business programs, a concentration is only 4 or 5 courses beyond the core. Much of the curriculum is the core: calc, accounting, econ, finance, stat, marketing, management, OID, ethics, etc. Then you’ll probably have some breadth and international requirements and possibly some gen eds. Look at the whole curriculum to see. Double concentrations are quite common among business students.
We also loved Richmond when we visited. They were attentive and friendly. And the campus is one of the most beautiful I’ve seen.