Imagine a product that allows a user to build a vault strategy via a drag and drop UI. Furucombo is to flashloans as this product would be to vaults.
For example, a user could create a yUSD vault strategy, but instead of selling CRV for more yCRV, they could sell CRV for yETH. The vault would return the original yCRV deposit and the accrued yETH.
A technical benefit of this might be that it could modularize the existing vault strategies and increase test coverage.
I understand this is probably a large project in scope, but I just wanted to put this idea out there for a potential place on the roadmap. I think it could give yearn a huge competitive advantage over other yield farms given the team's expertise and experience writing vault strategies.