Marissa Mayer will eventually split Yahoo! into a holding vehicle for its Asian assets alongside a smaller operating company, said Nicholas Carlson, author of 'Marissa Mayer and the Fight to Save Yahoo!'. Carlson added that Mayer's energetic, 'bottom-up' management style helped revive interest in Yahoo! when she joined in July 2012. However, he believes her demand for control and her vision for the company has made her a polarizing figure, especially for those investors with high expectations in the wake of the Alibaba IPO. Finally, Carlson said Mayer needs to avoid debacles like the hiring and firing of Henrique De Castro because she faces intense media scrutiny as a high profile female CEO.