Stewart-Haas began in 2009 when Tony Stewart joined forces with Gene Haas.
The reality star and her husband, musician Travis Barker, welcomed their baby boy in November.
Coming on to direct the sequel of an Oscar-winning animated feature is a daunting prospect, but luckily Kelsey Mann had producer Mark Nielsen to help with Inside Out 2. Having worked as an associate producer on the original Inside Out, Nielsen was thrilled when Pete Docter, who directed the original, suggested he work with Mann …