Asking is important but how you respond is even more important
Having been on both sides of this idea I can relate to the enthusiasm evident in the posted comments. While asking these starter questions is a great idea, anyone who does this can find they've opened Pandora's box! A leader has to respond in a way that does not transfer the responsibility of the suggestion to him or her self - othewise the leader will make things worse by having asked with out being able to give a satisfactory response. (Refer to the Dilbert Pointy Hair Boss syndrome.)