Από κοινού εργασία μεταξύ συνεργατών ;
Σύμπραξη μεταξύ συνεργατών / Συνεργατική σύμπραξη - Ανταγωνιστική σύμπραξη / σύμπραξη μεταξύ ανταγωνιστών
...
Competitive collaboration also recognizes the interdependence of the parties in the relationship. Collaboration sometimes means
working with the enemy for a common good. But collaboration also means
working together cooperatively to achieve a common end. By defining the basis of the relationship, you also determine the needed outcomes. When you define those up front, you know where you're going, how you're going to get there, and who's going with you.
(
http://www.optimizemag.com/issue/010/collaborative.htm)