Dive Brief: 

• Long-term ad sales executive Keith Lorizio is out at Microsoft. 
• Lorizio had been V.P. of US Sales for Microsoft Advertising since 2010 and with the company since 2006. 
• Microsoft issued an official statement confirming Lorizio's departure, but neither Microsoft nor Lorizio offered a reason for the split. 

Dive Insight: 

Microsoft is still on the hunt for a new CEO and Lorizio's departure may be part of a bigger executive restructuring. Microsoft remains one of the top digital ad sellers in the country, but is slowly losing ground to other leaders like Facebook and Google. Perhaps Lorizio's exit can be attributed to a lackluster ad program as of late.