Managers oversee the work of other supervisory, professional, or managerial personnel, or they manage a critical function, department, or sector of the company. In general, executives supervise the administration of an organization, or a subsidiary of an organization; they also have the authority to rent and dismiss lower-level employees, as well as undertake other personnel activities.
It's also necessary to distribute a wide range of discretionary decision-making, which is only subject to general oversight. The specialist expertise necessary for an L-1B visa typically includes information about the company's product, service, studies, tools, processes, approaches, management, or others, as well as their impact on foreign markets.