Awesome, Dave!  Thanks for the feedback.  This is where my head was going and about the only use case I could see (you can do most of this now via Fusion and the Marketo connector they have) that made sense.  Thanks for helping me validate.

Pam if you remove a stage, like 2, from your proof workflow, when stage 1 completes it will notify stage 3 folks as usual.  There's also an option in the proof workflow to activate stage if you wanted to make stage 3 folks able to take action before stage 1 folks finish.

James, We used it at my previous company and had a pretty good usage rate, about 60% of the marketers were doing work from Teams.  Recap of pros/cons we saw:   Pros: Users like managers/Leads that weren't in WF all that much but members needed their approvals on lots of things loved it as they made ...

Send me email at kurt.jones@jpmorgan.com and I'll send you info to make it

Email me at kurt.jones@jpmorgan.com and I'll send you info to make it.

  This is one we just created as we start to use Proof, there is some textmode with it.  Happy to share how its made.

Julie, I don't believe its possible. Workers need the ability to edit/contribute to update information across a task which unfortunately means some of the fields you noted that are part of tasks. 

Have any of you integrated between your Workfront and Marketo environments?  Doesn't matter if its through Fusion or other connections, would you share the use case you were solving for?