San Diego's vitrorobertson added Matt Dimmer, formerly of JWT/Atlanta, as a senior designer and art director. ... Biscuit signed directors Aaron Ruell and Adam Cameron, Cameron formerly part of duo Joe Public. ... Chris Thompson, D&AD's Director of Education & Professional Development will be leaving for Ravensbourne College of Design and Communication as Head of Enterprise and Innovation in March. ... Miami's la comunidad added Matt Orser, formerly of Carmichael Lynch, Minneapolis, and Alvaro Ramos Solanes, formerly of Leo Burnett in Lima, Peru as art directors. ... Director of photography Checco Varese will be represented by Montana Artists Agency. ... Mojave Creative hired Carmon Flynn, formerly of Adelphia Communications, as director of business development. ... Jen Sienkwicz, formerly of Crew Cuts, joined Outside/NY as a senior producer. ... The directorial duo Russo brothers–Joe and Anthony–of Emmy-winning Arrested Development fame, signed with RSA for commercial representation in the US.