Laboratories, research groups, institutions should keep multiple "problem lists." One list may contain open questions in your field of research. In my case this might be questions like what is consciousness or how should we implement attention. A different list would contain items that we think should be improved upon. In my case, for example, I am doing certain things to control complexity but I may hope or believe that we might do better. Or I may be using some algorithm but believe that a better one may be possible.
In today's world most work is done by groups. (I am one of the few remaining lone wolves.) Some member of the group may have useful ideas about how to solve a problem faced by some other researcher. Several such outstanding problem lists should be maintained and reviewed periodically.