A project has been reporting a declining schedule performance index (SPI) for the past four reviews. No corrective action is under development, and the project team does not seem concerned. What should the project manager do first to address the SPI trend? Notify the project stakeholders that the scope needs to be reduced in order to hold the costs within budget. Engage with the project team to create a plan that will deliver benefits on a defined and incremental basis. Contact the project sponsor to let them know you require more resources to meet the schedule. Meet with the project scheduler to rebaseline the project using a more realistic schedule