FTC names Chief Technology Officer Stephanie Nguyen to head agency’s new Office of Technology ... Harmonic names Senior Vice President-Business Development Jeremy Rosenberg interim chief financial officer, effective with March 3 departure of current CFO Sanjay Kalra ... Texas Instruments elects Comerica Chairman-President-CEO Curtis Farmer to its board, effective April 1 ... Cass Information Systems promotes President-Chief Operating Officer Martin Resch to president-CEO, and adds him to its board; current CEO Eric Brunngraber moves to executive chairman, both effective April 18.