As a method to have the party both be bound together and have a reason to investigate strange goings on in Ten Towns, i am thinking that the Council of Speakers has voted to create its own "sheriff's office." With things deteriorating due to Auril's curse, the Speakers think having visible agents around will not only improve morale but make them seem more effective and legitimate. But because not all of the Speakers agreed with the idea, the compromise they struck was to make the first team up of unknowns. Those Speakers want to see it fail.