MediaMath Director, Programmatic Strategy & Optimization interview questions

(preface: didn't receive offer due to lack of management experience, which I'll concede as someone with < 3 years of full time work experience) Pretty straightforward interview process. Fielded InMail from recruiter, had an initial vetting call for 30-45 minutes. As a follow up, the recruiter e-mailed me a case study brief and accompanying data set in the form of a spreadsheet. The ask entailed running a few different attribution models and putting together a presentation with derived insights and recommendations on incorporating those learnings into the marketer's next program. I submitted this back to the recruiter, and after it was reviewed, they wanted me to speak with the hiring manager over the phone. Conversation went fine, no crazy questions or anything unexpected. Overall the process was pretty smooth, the recruiters were responsive and helpful in understanding the process. The one piece of negative feedback I have was that the hiring manager didn't review the case study or deck I spent 2-3 hours preparing at his request, so if you're asked to do something similar, I'd view it more as an administrative hurdle that you need to simply "pass" and wouldn't put too much time into it.