Can a competing revision (supplement) application include multiple-PD/PIs even if the parent grant was not originally reviewed and approved as a multiple-PD/PI project?
Yes, if the FOA allowed multiple PD/PIs. A revision application revises and extends the scope of the previously approved project. Therefore, the revision may include a change in the model used from a single PD/PI to multiple PD/PI. However in this case, a Leadership Plan will be required as part of the revision application.