The authors say that back in the 1970s, factory workers were blamed for a decrease in productivity when U.S. companies began losing market share to Japanese competitors. and mentoring programs to raise teaching. NEW YORK (AP) — Candelaria Lopez had tried to learn English before, but it didn’t work. said Jessica Rothenberg-Aalami, CEO of Cell-Ed, the company providing the lessons. The San Francisco Bay Area company has been in. On…