Mary Hentges, ex-PayPal, becomes CBS Interactive chief financial officer...

Mary Hentges, ex-PayPal, becomes CBS Interactive chief financial officer … ViewCast names Adrian Giuhat, ex-Nexstar Broadcasting, senior vice president-product development and chief technology officer … Changes at mobile e-mail firm Seven Networks: Michael Luna, ex-AliphCom, becomes chief technology officer; Tamara Steffens, ex-FusionOne, named executive vice president-field operations; David Ratner promoted to chief operating officer … Norman Pattiz retiring from board of Westwood One, to be consultant to company he founded, and be succeeded as chairman by Mark Stone, Gores Group … Steve Carver, ex-Tribune, hired by CBS Radio as senior vice president and market manager for Los Angeles.