The Wall Street Journal: Nissan’s U.S. chief is latest exec to quit troubled auto maker

The high-profile departures include Ghosn’s handpicked replacement as chief executive, Hiroto Saikawa, who was pushed out by the board after it was found he received improper stock-based performance compensation. Saikawa said he was unaware that his pay was increased, and he wasn’t accused of wrongdoing.

Valls’s departure comes as Nissan prepares to unveil an overhaul of its business. It will build on a plan announced by Saikawa, which led the company to cut 9% of its workforce and trim production as part of efforts to slash costs by $3 billion.