Bebo joins the education multinational from Hologic, bringing expertise in boosting employee engagement and leadership diversity.
The first woman Chief Economist and the first India-born holder of the position will now be the second-in-command at the International Monetary Fund.
The firm announced the new round of promotions to celebrate "extraordinary contributions during extraordinary times".
Susan E. Arnold will take the reins from Bob Iger, who led Disney to "amazing heights both creatively and financially".
Quentin Kilian will succeed Gil King as the CEO of Real Estate Institute of Victoria (REIV) from mid-February 2022.
He joins General Atlantic after 12 years at Mastercard, including more than a decade as President and CEO, and most recently as Executive Chairman.
Taylor was named the chairman of Twitter's board of directors, earlier this week.