I think the principal is still the same. Surgeons do not perform surgeries every day. They usually have some days of the week they meet with their patients in an office setting. And then other days of the week they are in back to back surgery all day. It would be interesting to know what, if any, industry standards determine which days are allocated for which. Or if there is a hierarchy of surgeons who get "dibs" on scheduling their surgeries on Mondays.