As Cracker Barrel and other examples show, tinkering with the core offerings and atmosphere beloved of regulars is a risky step. The better strategy is to execute better and refine what you already have. That take less in the way of big ideas but lots of hard work.
Ray Kroc, the obsessive, hard-working milk shake salesman who bought and built McDonald's into a restaurant empire was intensely focused on the details of everyday success and failure. For example, in the early days of McDonald's expansion, their French fries proved to be problematic and too often soggy and tasteless. On investigation, Kroc found that the key was buying the right kind of potatoes, drying them more than industry normal, and then keeping the moisture content and frying time within tight limits.
That kind of intense focus on operations is required to win in the restaurant business. DEI may help you feel good but is beside the point. And for Cracker Barrel, DEI and rebranding have been little short of suicidal.
Our country is run by a generation of participation award winners that had parents doing their homework and always did group projects and never had an individual thought. Rember the SOTU paddles those are your leaders.