I fail to see why everyone is assuming that getting the 787 back in the air for commercial service is an engineering issue. Boeing's (the marketing company) only fiduciary interest is to its shareholders. The annoyance of airworthiness certification is easily dealt with by reminding the FAA (who are political appointees) upon which side of their bread is buttered by members of Congress whose electorate have employment related to the 787 and therefore future votes. Chicago is well aware that the stock market has a shorter memory than the families of a few dead passengers and crew.