Donald Clarke has served as a member of our board of directors since May 2014. Mr. Clarke currently serves as the Chief Financial Officer for Plex Systems, Inc., a privately held cloud technology company. Prior to joining Plex, from March 2008 to March 2013, Mr. Clarke served as the Chief Financial Officer for Eloqua, Inc., a publicly-held marketing automation company. Prior to working at Eloqua, Mr. Clarke was Chief Financial Officer at both Cloakware, Inc., a privately-held security solutions company, from August 2006 to February 2008 and at Visual Networks, Inc., a publicly-held application and network management solutions company, from July 2004 to March 2006. Mr. Clarke is a member of the American Institute of Certified Public Accountants and holds a B.A. in Accounting from Virginia Polytechnic Institute and State University. Our board of directors believes that Mr. Clarke's experience in operations, strategy, accounting and financial management at both publicly and privately held companies qualifies him to serve on our board of directors.