Magento

I’ve just begun to experiment with Magento for a new B2B site my company will be launching. We sell commercial/industrial gear where transactions often involve two different buyers (different registered/named users, same company). A typical scenario is that an informed buyer (e.g., an engineer on a job site) places the initial order for products he/she needs, but a second individual, usually in a purchasing dept., has to OK the order and issue payment or a PO. Does anyone have any experience with such a scheme and whether or not it’s feasible with Magento? Any and all experiences and comments are welcome.