The Dodgers promoted former pitcher Brandon Gomes to general manager after doing without one since November of 2018:

Friedman operated without a traditional GM after Zaidi was hired away from the division rival Giants in November 2018 but has said the front office tackled the traditional duties of that role collaboratively.

That will continue to be the case, though Gomes — reportedly a candidate for the New York Mets’ GM vacancy before Billy Eppler got the job — will have his hand on more aspects of the Dodgers’ baseball operations department moving forward.

ESPN.com

Baseball middle management grew over the years. The GM used to be the top spot in baseball operations management, but now that role mostly evolved into a vice president of operations role. I suspect the most VPs do what the GM used to do, but with so many more people working in things like analytics, and with the legal aspects of contracts and transactions more complicated than before, the head of the department needs more people, and more people to manage those sub-groups.