I understand that even scientists, who are often said to live in spheres far remote from reality, do need to make a living. However, this does not automatically preclude writing grant applications in public, since that would allow (a real-name policy and some version tracking tool provided) to track the origins of ideas much more precisely and transparently than what the current system with non-public grant writing allows for. In short, the transition may involve pain (on both sides) but public grant writing, as already practiced in some fields (e.g. particle physics), may well turn out to be a valid option in the long run.