For Jawbone and Its CEO, a Second Chance to Lead the Gadget Pack

About a year ago Hosain Rahman and his San Francisco-based company debuted Up, a personal health gadget. The slim, rubberized wristband had buzz, the early-adopter set was loving it, and on Black Friday the $99 chunks of electronics were being snapped up like so many candy canes. Total devices sold was in the six figures, according to Rahman. It was the fastest selling product Jawbone had ever launched. In other words, it was a hit. Then it turned into a nightmare.