-Two months after taking over lead creative duties on Cadillac, Boston-based IPG agency Hill Holliday has found a new chief strategy officer in Graham Ritchie, who heads to the States after serving as managing partner of Publicis Mojo, Australia and New Zealand.

-TBWA\Chiat\Day LA has appointed Peter Ravailhe as managing director of its Gatorade account.

-Fresh fruit arrangement specialist Edible Arrangements has appointed The Richards Group and Horizon Media as its creative and media AOR, respectively.

-Canadian-based Scotiabank has enlisted a variety of odd characters to support its 2013 AIDS Walk for Life, which will take place Sept. 14-22 (above). link

-Whitehouse Post has welcomed editor/Spot Welders alum Lucas Spaulding to its Los Angeles office.

-YouTube founders Chad Hurley and Steve Chen are back with a new, free mobile app called MixBit. link