A modeling agency that represents women of all sizes? In an industry that likes to categorize women--as "straight size" (0-2) or "plus size" (12-16)--it's a revolutionary concept. But that's just what former Ford agents Gary Dakin and Jaclyn Sarka, both of whom co-directed Ford's plus board for many years, have done in setting up their new agency JAG. "We are the first agency in New York that’s dedicated solely to women of all sizes," Dakin said.