Crittenton Hospital Medical Center, a 290-bed health care facility in Rochester, Mich., selected pushtwentytwo as its creative and TV production marketing agency.

Guitar Center tapped McGarrah Jessee to collaborate on brand development. Building off of a recently completed brand strategy and positioning initiative, McGarrah Jessee is now in creative development for several national broadcast campaigns.

RadioShack tapped Grey New York as its lead creative agency of record, a position previously held by Butler, Shine, Stern & Partners.

Leo Burnett Worldwide was named agency of record for Bridgestone Americas Tire Operations. The agency will handle creative chores for the Firestone tire and Firestone Complete Auto Care brands.

Spurrier Media Group was named agency of record for Springfield Toyota in Springfield, Virginia.

Enterprise Bancorp, Lowell, MA, named Rattle as its media buying and planning agency for its first major consumer campaign launch.

CAHG, a healthcare communications agency, is forming a strategic alliance with TBWA/WorldHealth as the network’s lead healthcare professional agency in the U.S. Both are part of Omnicom Group.

Haberman, Minneapolis has been chosen by GNP Company to handle brand strategy, advertising, interactive and cause marketing for the company’s Gold’n Plump and Just BARE brands.

Engine Company 1, San Francisco was tapped to handle all media planning and buying responsibilities for Jiffy Lube Bay Area, supporting 43 retail Jiffy Lubes.

180LA was tapped to handle creative chores for Expedia.com.