Longer-term, you may need to consider things like, "how easy is our email setup for Marketing to own" because it makes a lot more sense for an experienced email

Longer-term, you may need to consider things like, "how easy is our email setup for Marketing to own" because it makes a lot more sense for an experienced email marketer to own things than an engineer at a certain level of scale, both from an experience and head count cost standpoint. There's also the consideration of "should all emails live in one platform?" It may very well be that high-volume, low-impact transactional mail should absolutely go through something like SES, whereas higher value emails go through an actual marketing ESP like Mailchimp or something more robust. It isn't a black and white situation.