5:30 p.m. on a Tuesday. Most people are counting down the minutes to go home. For new-biz execs like me, it's more like the middle of the day. I sit in the new-biz war room at Grey advertising during one of the biggest pitches of the year. I'm joined by a crew that only a couple years prior would have been atypical. In a room adorned with photographs of advertising legends like Larry Valenstein and Arthur Fatt are executives whose backgrounds and ethnicities are very different than the legends that came before them.