Jonathan Hoffman has joined Starcom USA as chief experience officer, a newly created position focusing on idea generation and experience platform development. Prior to joining Starcom, where he served in a consulting capacity for six months preceding this appointment, Mr. Hoffman was president-chief creative officer at Campbell Mithun in Minneapolis. During his time at the agency, Campbell Mithun won accounts including H&R Block, National City Bank, Famous Footwear, Syngenta, Fiserv, SuperValu, Siku Vodka and The Unconvention. From 2000 to 2005, Mr. Hoffman was vice chairman-executive creative director at Starcom sibling Leo Burnett in Chicago. Before that , Mr. Hoffman acted as the chief creative officer at Leo Burnett in Warsaw, Poland, from 1997 to 1999.