John Chambers
John Chambers, former CEO and chairman of Cisco.
  • Former Cisco boss John Chambers thinks CEOs need to be selective about the issues they speak about.
  • His comments come as companies and leaders face pressure to take a stance on highly-charged issues.
  • Consumers are largely avoiding shopping with brands whose values don't align with their own. 

CEOs are increasingly under pressure to take a stance on highly-charged social and political issues but Cisco's former boss says it's a "mistake" to comment on topics that don't relate to the company's mission and purpose. 

John Chambers, CEO of Cisco from 1995 to 2015, who grew the company's annual sales from $1.2 billion to $47 billion, advises leaders to be selective about the issues they comment on.