select workflow_id,
       suggested_duration,
       pretty_name
       (...) as number_of_roles
       () as min_number_of_human_roles

Each record has a Instantiate this template

from workflows
where ready_p = 't'

Sort and filter based on "expected duration" and number of roles. Possibly also show "number of roles that can't be played by an agent" (as "min # of humans")

TODO: Show a list of simulations with no cases so that you can continue working on one that was partially instantiated.