Just dealing with the different laws about taxi services in different countries/cities itself would require a staff that size or more. And there's a lot more th

Just dealing with the different laws about taxi services in different countries/cities itself would require a staff that size or more. And there's a lot more than that behind the scenes, like security checks on drivers, managers for each city to decide incentive plans for drivers etc. It's a very massive endeavour, and the size of the company is justified.