OP: Your daughter’s major is in problem solving.
Management Consulting firms and other elite employers seeking effective managers will appreciate your daughter’s Ivy League education, her intelligence & her work ethic.
Even though her approach to problem solving is not heavily STEM or quant focused, your daughter should receive attractive job offers before graduation.
If in management consulting, she will need Microsoft Excel & Microsoft PowerPoint familiarity. Comfort with data bases is also expected & easily acquired by someone with her intellectual ability & work ethic. MC firms mentor & train their hires. All your daughter needs is proven intelligence & demonstrated work ethic. Admission to & graduation from an Ivy League school should suffice in this respect.