The Committee on Postponed Parts, headed by David Brearley, was the Convention's most effective committee. Its business, as you'll learn, was to reconcile demands about the shape of the new national president. You'll also learn about the Committee on Style, whose sole task was to wordsmith the Convention's agreements into a single document.The Committee on Postponed Parts, headed by David Brearley, was the Convention's most effective committee. Its business, as you'll learn, was to reconcile demands about the shape of the new national president. You'll also learn about the Committee on Style, whose sole task was to wordsmith the Convention's agreements into a single document.