CreativityMicrosoft’s Valentine’s Advice: Break Up With Siri and Start Seeing CortanaTimely love notes from m:unitedBy Tim Nudd|February 13, 2015ShareBy Tim Nudd|February 13, 2015Share Ever since Microsoft introduced Cortana, its personal assistant for the Windows Phone, it's been slamming Siri for her vanity and uselessness. Now, for Valentine's Day, it's proposing that you give Siri the old heave-ho for good—and begin a torrid affair with her archrival. Check out the two new spots below, from m:united. The second one has a particularly cute subtext, although Siri would tell you to watch out—that this is one suitor with a menacing agenda under all the sweetness. CREDITS Client: Microsoft Agency: m:united Co-Chief Creative Officers: Andy Azula, John Mescall Executive Creative Director: Yo Umeda Senior Copywriter: Thom Woodley Senior Art Director: Trinh Pham Director of Creative Technology: David Cliff Head of Integrated Production: Aaron Kovan Executive Producer: Carolyn Johnson Junior Producer: Monique Fitzpatrick Managing Director: Kevin Nelson Executive Vice President, Group Account Director: Tina Galley Senior Vice Presidents, Group Account Directors: Darla Price, Jason Kolinsky Account Director: Melissa Trought Account Supervisor: Greg Masiakos Assistant Account Executive: Emily Glaser Project Management: Stella Warkman Production, Postproduction: Craft Director of Photography: Larry Kapit Editors: Nate Troester, Carlos Hernandez Music: "Big Top Polka," Erin Gemsa Media Agency: EMT Adweek Adweek