Lemonis: 'You can't run a business on just cupcakes' By: CNBC.com News July 25, 2014 at 12:38 PM EDT Marcus Lemonis, of CNBC's "The Profit" dispenses advice every day. He is answering some of the most popular questions including his thoughts on Crumbs. Read More >> Related Stocks: Crumbs Bake Shop Inc Twitter, Inc.