NBC News is preparing for its largest round of layoffs in years, with about 150 employees expected to lose their jobs this week as the network adjusts to life without its cable siblings MSNBC and CNBC, according to a report. The job cuts, expected to begin Wednesday and continue through Thursday, will hit roughly 7% of the 2,000-person news division, Status reported. Staffers at NBC News headquarters are “dreading what’s to come,” a 30 Rock insider told Status. The looming layoffs come as