Some members have criticized the club' s president for inviting Dr. Hines to speak at the annual awards banquet without consulting other club members beforehand. But a few years ago the previous club president hired a tax accountant even though he had not discussed it with club members beforehand. So the current president acted appropriately in the way in which she invited Dr. Hines.
The assumption that the club's previous president acted appropriately in hiring the tax accountant without first consulting other club members is on which the argument relies.