Before scaling back his career to take care of his son with J. Crew creative director Jenna Lyons, Vincent Mazeau was successful in his own right. After receiving his Master of Fine Arts degree as a graduate of Sculpture from Yale in 1995, he worked as a set designer and art director, collaborating with fashion houses such as Yves St. Laurent and Dolce & Gabbana. However, it was his paintings and 3D artwork that appeared to be his first love. He has exhibited his work multiple times, with several of his pieces still being housed in the Lehmann Maupin New York gallery. However, at some point during his relationship with Lyons, he reportedly took a step back from a blossoming creative career to be a full-time dad to their only child.

Lyons reportedly purchased Mazeau an art studio during their marriage, which afforded him the luxury of not having to work every day. However, after welcoming Beckett on October 3, 2006, the couple decided it would be best if they depended solely on Lyon's $5 million J. Crew salary while Mazeau cared for Beckett. As a result, he stepped away from his set design work. This became a point of debate in their divorce, with Mazeau requesting a settlement for apparently letting his own endeavors go for the sake of his family.