During his most recent three years at Y&R Group Seattle, Liebenthal co-led a team of 20 creatives on content-driven customer relationship management campaigns to T-Mobile consumer customers, and helped the agency win and build its T-Mobile B2B customer acquisition account. He was a key member of the team who executed T-Mobile’s “Un-carrier” transformation in 2013. That same year, T-Mobile and the agency team were awarded marketer of the year by the Direct Marketing Association.
Liebenthal began as a copywriter. Over the past decade he has held creative leadership roles at Publicis Groupe, Kern, Oliver Russell, and Y&R. Some major accounts he’s led include AT&T, Avaya, ConAgra, DIRECTV, HP, Micron, Regence, SAP, and Sprint.