CAB Ownership?

Hi all! I've been tasked with creating a CAB (zero budget/resources aside from the people I can recruit internally) - and I'm wondering where CAB ownership lives in your org. I've always seen CABs owned by Marketing or Product, so building this out from scratch within Success is daunting. 

Advice welcome on what's worked! We will be partnering with Product, but the main ownership will sit in Success. 

~Amanda