[pdebruic]

I'm making a service that does this. Its not public but works OK. I made it for a summer camp where the campers (~250) sign up for different stuff each day (Archery, Swimming, Sailing, + 30 others) so the demand for appropriately trained staff in each activity can fluctuate wildly on a day to day basis. The staff (~70) have days off but the campers don't, so the available talent pool also varies significantly. Let me know if you want to try it. I'm definitely going to charge for it when its publicly available.