Name: LAURA SEN
Title: President, chief operating officer, BJ's Wholesale Club
Biggest challenge: Steal share away from competitors with right merchandise mix and with pizzazz.
NATICK, Mass. — Laura Sen is not the leader of the club yet, but she is close to it after returning to BJ's Wholesale Club after a four-year hiatus.
BJ's Chairman Herb Zarkin, who in late 2006 took on the chief executive officer role, following a disapp