After a promising start to her stint as CEO, Gass must now steer Kohl’s back to growth after two quarters of sales declines. She urgently needs to revitalize Kohl’s private-label brands and ...

Gass, a Starbucks veteran who helped make “frappuccino” a household word, has been CEO only since May. But during her five years at Kohl’s, she engineered many of its most successful ...