Hi Lisa, I haven't heard of this so I'll be interested to see the replies!
We interpret these findings to mean that administrators should take additional care not to place precarious faculty at a disadvantage that might cause their course not to "make." For example, if a part-time faculty member doesn't have the option or resources to adopt OER, they can be scheduled for sections that are likely to fill for other reasons (day, time, modality, etc).
I think that your model could be seen as a help to departments looking for enrollments, since designated courses do see higher enrollment (in our data set). I think the implementation would need to be done carefully and with input from part-time and non-tenure-track faculty to make sure that they aren't inadvertently harmed along the way.
Two cents! Please write back to the list to let us know what you decide to do.
Amy