Yes, the network effect of social programming is the heart of open source, so the leader dominates more and more. But migrating issues is not so trivial. There

Yes, the network effect of social programming is the heart of open source, so the leader dominates more and more. But migrating issues is not so trivial. There are probably several other subtle points of incompatibility making switching a headache. If it ain't broke is the Enterprise mantra. They love to standardise. They will hang on for decades. However, the real point is that $20/m/user is comparatively cheap for the enterprise. The github category is already far better than the old ways; to win, they merely need be slightly more attractive and/or better known than the category alternatives.