Altitude Digital Partners promoted Devin Yeager to chief operating officer and hired Don Jankowski as director of national sales and Kelly McMahon Darnall as ad operations director.

Location3 Media named John Harris as chief strategy officer.

Arnold Worldwide hired Mike Wilson as executive vice president, group creative director. Most recently, Wilson was executive vice president, chief creative officer at GSD&M in Austin, TX.

MPG named David Buklarewicz as vice president, group account director. Buklarewicz joins MPG from DraftFCB's Chicago office, where as vice president, group planning director, he managed the agency's Qwest account.