This statement is applied to journalism, but is highly relevant for educators: “There is a professional transition in the field from an environment where competition was the dominant mode of interacting with other organizations to an era where dividing labor and sharing might serve the public better.”
Sharing is an important strategy for public universities to respond to the of for-profit universities. To date, the sharing has been confined largely to content. Teaching and learning should follow. Educators should co-teach or cross-teach with other universities in a region/province/state/country. While this would likely reduce costs somewhat, that is really a secondary benefit. The key benefit would be better learning experiences for students through more diverse interactions with both peers and with faculty from other regions.