When he returned, Jobs completely upended the company. There were thousands of layoffs. Scores of products were killed stone dead. He knew the company had to make money to stay alive, but he transitioned the focus of Apple away from profits. Profit was viewed as necessary, but not sufficient, to justify everything Apple did. That attitude resulted in a company that looks entirely different to almost any other modern Fortune 500 company. One striking example: there's only one person Apple with responsibility for a profit and loss. The CFO. It's almost the opposite of what is taught in business school. An executive who worked at both Apple and Microsoft described the differences this way: "Microsoft tries to find pockets of unrealized revenue and then figures out what to make. Apple is just the opposite: It thinks of great products, then sells them. Prototypes and demos always come before spreadsheets."
via blogs.hbr.org