Saatchi & Saatchi was added to Lenovo's agency roster and tasked with a global branding campaign.

Reebok tapped Tribal DDB to handle its global digital duties.

Norwegian Cruise Lines placed its $50 million creative and media accounts in review. GSD&M Idea City currently handles the work.

Microsoft placed its whopping $1 billion media account in review. Incumbent Universal McCann will defend.

SKIL Power Tools named the Milwaukee office of Cramer-Krasselt as its agency of record, responsible for broadcast, print and online marketing programs to support SKIL's product portfolio.

Chevys Fresh Mex tapped Hub Strategy to re-brand its national restaurant chain. The campaign will focus on elevating Chevys' look, while expanding its presence in digital and social media. Account spending is under $10 million.

Custom Essence tapped Maiden Media Group as its digital agency of record.

Arnold Worldwide's New York office has been named agency of record for Tribe, an all-natural hummus brand, and Veggie Patch, a vegetarian food company. The agency will handle strategic and creative chores.

PTC, a provider of product lifecycle management and design software solutions, selected Mechanica to lead brand development efforts for Creo, its design software for manufacturing companies. Billings were not released.

Alexander Interactive was tapped to launch Schwinn's newly re-designed Web site.