I appreciate what Mitchell has contributed above. I think the ideal humanitarian would also be someone who has an adaptive mind…meaning someone who can take in new information on a consistent basis and change tack if needed. It would also be important for them to keep abreast of best practice and make the necessary changes based on what emerges in the field. I could imagine that it may be tempting to rely on what worked in a previous experience to guide what you do in subsequent situations and although that experience would be valuable, you would also have to pivot as needed (and as new research is published).