UGG rolls out its latest ad featuring Pats QB Tom Brady next week, and we’re told the spot is more football-focused. (The initial ad basically showed Brady’s shod feet as he walked around.) In advance of the new ad campaign, UGG has put up a giant billboard — it’s 88 feet wide and 225 feet tall — on the building across the street from New York’s Madison Square Garden. . . . Meanwhile, Brady’s wife, Gisele Bundchen, seems to be taking a break from work. Pregnant with the couple’s second child, the supermodel and her son, Benjamin (not pictured), were seen taking a stroll Thursday in Back Bay.