General Motors announced a few internal shakeups on Thursday that see both Mark Reuss and Dan Ammann’s role change slightly. The biggest news is Reuss will now oversee the Cadillac brand, and president Steve Carlisle will report directly to Reuss.

Ammann relinquished control of Cadillac to better focus on the automaker’s self-driving car plans and strategy, Automotive News reported. Reuss’ title shifts from executive vice president, global product development, to executive vice president and president, global product group and Cadillac. Ammann will remain president.

Aside from Cadillac, Reuss will also oversee the role out of numerous new GM vehicles around the globe, and also be responsible for some tough decisions. One will likely include what will become of the 2018 Buick Regal/2018 Holden Commodore. GM’s former Opel unit builds the cars, which the automaker sold to PSA Groupe last year. The move could mean a stinted lifecycle for both vehicles.

Reuss will remain in Detroit, but Ammann will spend more time in San Francisco to work with Cruise Automation. However, he will still be based in Detroit as well.