Rich Isaacson joins Def Jam as EVP/GM Kevin Fleming January 5, 2018 Entertainment, Music News New Def Jam CEO Paul Rosenberg has made a high profile hiring in veteran exec Rich Isaacson as EVP/GM of the Universal Music label. He’s best known for working with acts including Wu-Tang Clan and Mobb Deep at Loud Records alongside Steve Rifkind. Obvisously, it’s a new day and not much Def in this new Jam. Related