This is kind of a surprise, via Radio Online...
Jam Productions co-founder Arny Granat has announced he'll depart the company after 46 years. Co-founder Jerry Mickelson will continue to manage the daily operations. Granat will remain the CEO and Founder of Grand Slam Productions where he continues to explore new opportunities.
Arny Granat commented, "Over the past four decades, I have enjoyed a career that has allowed me to work with some of the biggest stars on the most memorable concerts, including the Rolling Stones, Adele, Prince and Frank Sinatra, as well as awe inspiring theater productions, and other unforgettable events. I am looking forward to producing and promoting shows throughout the country in association with other partners and collaborators."
He is still producing shows (and writing a book), but he'll no longer be doing it with Jam. Arny is a Chicago institution. I wish him the best.