Head of PayPal steps down to join Facebook

Reuters:

David Marcus, who has led eBay Inc’s fast-growing payments unit PayPal for the past two years, will step down this month to run Facebook Inc’s messaging products, the companies announced on Monday.

In the newly created role of vice president of messaging products, Marcus will oversee the Messenger service within Facebook’s social network as well as the free Messenger mobile app, but not WhatsApp, said Facebook spokeswoman Vanessa Chan.

Roughly 12 billion messages are sent every day on Facebook, and the Messenger app has more than 200 million users, according to the company.

Given the complete lack of a messaging component in PayPal, I wonder what drove Facebook to make this particular hire.