Herwig is one of New York’s more prominent progressive/mainstream trombonists. He has recorded and/or performed with a number of famous leaders, including Joe Henderson, Jack DeJohnette, and Paquito D'Rivera. Herwig is an alumnus of the University of North Texas jazz program, an experience that has prepared him as a big-band player. He began his professional career in the early '80s with Clark Terry's big band; stints with Buddy Rich, Toshiko Akiyoshi, Mel Lewis, and others were to follow. Herwig became an increasingly in-demand sideman in the '90s. He is an accomplished pedagogue, having taught clinics and workshops around the world. Herwig is on the faculty at Mason Gross School of the Arts as the area coordinator of jazz studies.