How 10 major restaurant chains are overhauling their strategies

So is Jack on track? Maybe — some parts of the turnaround schemes have worked out. Del Taco has been amputated and cauterized , a process that resulted in a $115 million infusion for Jack. Closures of underperforming Jack stores have driven sales lifts at nearby locations of about 30%, Chief Financial Officer Dawn Hooper said on Jack’s most recent earnings call . But the pace of closures is lagging expectations, Hooper said, and total debt for the brand stands at $1.6 billion, with a 6.5-to-1 debt-to-EBITDA ...