By Nov. 1, Whitman will have executed one of the highest-profile separations in corporate history, splitting the beleaguered Hewlett-Packard into two divisions: HP Enterprise, which includes server, storage, and networking products and which she will continue to run, and HP Inc., the PC and printer arm. The road to separation has been rocky for Whitman, filled with layoffs, executive shuffles, and a 30% decline in the stock price this year.