1) The document discusses three key international HR challenges that companies face when expanding globally: managing costs, maintaining flexibility, and maintaining control over HR processes and data.
2) Maintaining costs is a challenge because companies typically implement multiple local payroll systems, which increases IT, support, and administrative costs. A single global vendor reduces these costs.
3) Maintaining flexibility is difficult because frequent regulatory changes in different countries and a lack of local expertise limits companies' ability to adapt. Standardized global processes and outsourcing to a single vendor increases flexibility.
4) Maintaining control is a challenge as fragmented local systems do not provide executives a single accurate view of the global workforce needed for decision making. Outsour