Is there any case law supporting plaintiffs' claim that they would have been able to obtain some unidentified documents if they had been granted additional discovery?

As quoted, plaintiffs' brief argument makes the vague claim that the sought-after discovery would have allowed them to "flesh out" some unidentified documents obtained from some defendant(s) in discovery. Such argument is hardly sufficient. As we said in Mansell v. Board of Administration (1994) 30 Cal.App.4th 539, 545-546, we are " 'not inclined to act as counsel for . . . [plaintiffs] and furnish a legal argument as to how the trial court's rulings . . . constituted an abuse of discretion.' "