Appreciate the additional comments, @takeabreath !
In the scenario where one grantee ends up receiving the entire grant program amount I believe it would make sense for the three grant committee members to be the sponsors and share the responsibilities and commission equally.
KPIs for success will be defined further but for starters a successful grantee could be defined as someone who gets the grant and spends it exactly as was mentioned in the application and during the respective agreed upon time frame.