Comcast promotes Mike Cavanagh to president, continuing as chief financial officer ... Fiber internet company Lumos hires A.J. Brown, former counsel to the House Communications and Technology Subcommittee, as chief legal officer ... Splunk appoints KLA CEO Rick Wallace and David Tunnell, a partner at Hellman & Friedman, to its board, and says Stephen Newberry will step down as a director ... Dutch startup Axelera AI adds Jonathan Ballon, ex-Cisco and Intel, as nonexecutive independent director ... Domo names Monica Pool Knox, ex-Microsoft, chief people officer ... Red Hat promotes Carolyn Nash to senior vice president-chief operating officer and Jim Palermo to vice president-chief information officer, and names Robert Leibrock, ex-IBM, senior vice president-CFO ... USTelecom names Nirali Patel, from Comcast, senior vice president-policy and advocacy, effective Oct. 24 … Minnesota Gov. Tim Walz (D) appoints Bree Maki, from office of Sen. Tina Smith (D), as director-Office of Broadband Development.