For the Enterprise
Integration with project portfolio management and risk management through the entire development cycle is only part of the advantage. Build a portfolio with projects with different cost / risk strategies. Compare and contrast projects with competing resources to optimize resource allocation.
For the Professional
Scenario modeling to optimize project success. Run alternate project plans to compare the cost / risk assessments. Set milestones to compare cost and progress. Early identification of excessive cost / risk can indicate a project heading for disaster.