In some cases, you can see where the CEO changed.
Mary Barra took over at GM after the 2009 bankruptcy.
Allen Mulally took over at Ford in 2006. He was replaced by Mark Fields in 2014. Fields was replaced by former Steelcase CEO Jim Hackett in 2017. Having worked at Steelcase dealers during the Hackett regime, I know him for charging high prices, and turning out junk. Hackett was replaced by current doofus Jim Farley in 2020.
Sergio Marchionne, CEO of FCA died in mid 2018. The merger with PSA, to form Stellantis, closed in early 2021.
Steve