Worked at a company that combined the two, which eventually led to half the dev team working for... the marketing dept.
It was a horrible mess.
It was a horrible mess.
I have experienced this myself personally, and have contracted with numerous companies who ran into the same issue.
The biggest issue I ran into was when the dev department started to not care about the WP instance because they don't work for marketing, and the marketing department failed to report one of their accounts was hacked, and a plugin was taken over :(
And not diminishing the other components, but my understanding of retail at scale from working corporate for a moment shifted to "Supply Chain is where profit is made or lost: everything else is follow-through."