The dynamic relationship between earned value metrics and managing risk

Describe the dynamic relationship between earned value metrics and managing risk. Your response should address the following elements: How metrics like cost performance index (CPI), schedule performance index (SPI), estimate at completion (EAC), to-complete performance index (TCPI), and variance contribute to identifying and quantifying risk The role of the control account manager (CAM) in identifying, managing, reporting, and acting on risk The difference between risk at the control account level versus risk at the project level, the program level, and the portfolio level