Speculating

[HereSince1628]

6. You can't trust promises, everything must be contingent on continued performance.

that's the path to the GE for Sanders and after the GE with whatever progressive allies will exist in Congress

She stays the course or the Progressives get real stingy with their support.

And that will come to voters as the 2018 midterm approaches. If the dems aren't being true to their promises they get seriously primaried wherever necessary.

That's working inside politics. It works best when you've got a critical amount of influence, but that's the model.

Never pay everything up front. Pay as you go on the basis of well performed work.