Core Strength: The Core Entertainment has added former Columbia Records Associate Dir./Marketing Sarah Pfeiffer as Head/Marketing, and former 7s Management day-to-day Manager Gabriella Pulley as Chief of Staff. Pfeiffer spent eight years with Columbia in New York. Pulley worked with Nathaniel Rateliff & the Night Sweats at 7s and, earlier in her career, oversaw day-to-day for Zach Bryan. Both are based in Nashville and report to The Core CEOs/Co-Founders Simon Tikhman and Chief Zaruk.