Manufacturers Find Themselves Increasingly in the Service Sector By CLARE ANSBERRY Staff Reporter of THE WALL STREET JOURNAL PITTSBURGH -- The manufacturing sector is morphing into the service sector, at great reward and risk to the economy. In recent years, manufacturers have so greatly improved productivity that companies need fewer people to actually produce goods. Many other production jobs, especially low-skill ones, have been shipped to lower-cost countries. The result has been painfully clear to workers: Those type of manufacturing jobs are fast disappearing. But what isn't so well understood is this: Of the workers still employed by manufacturing companies,...