General Motors Corp. is expected to name turnaround executive Al Koch as its new chief restructuring officer to guide the auto maker's trip through Chapter 11 bankruptcy protection, according to people familiar with the matter. Mr. Koch, a managing director at the advisory firm AlixPartners LLP, will be named to the post when GM files its bankruptcy papers at 8 a.m. Monday at the U.S. Bankruptcy Court in New York's Southern District, these people said. He will be the highest-ranking outsider in GM's officer ranks and oversee about 60 Alix employees working for the auto maker.