We have learned that five senior NBC.com employees were laid off today. The list includes VPs Josie Ventura (VP Primetime Production), Emre Celik (VP Technology) and Robert Angelo (VP Late Night, Daytime & Mobile), Senior Quality Assurance Manager Jennifer Grant and Chris Himes, Supervising Digital Producer, SNL, Late Night With Jimmy Fallon, 30 Rock. Word is that the shakeup is part of a restructuring and staff overhaul implemented by NBC’s new digital chief, EVP Digital Media Robert Hayes, who joined NBC last summer. The positions are expected to be refilled. With NBCUniversal as one of the main backers of Hulu, the content on NBC.com and Hulu often overlaps, challenging NBC.com to forge its own identity.