Troubles arose when the Mac did not sell as well as anticipated, partially because the Mac division chronically missed deadlines for the development of crucial Mac-system parts. Pushed by the board of directors to take greater control. Sculley finally proposed a new functional organization structure aimed in part at reducing the duplication of positions in such areas as marketing, human resources, and manufacturing. The new structure included product operations (R&D. manufacturing, service, and distribution), marketing and sales, finance and management information systems, legal services, and human resources, With the Mac division dissolved. Jobs resigned his position as chairman and left the company,