I am doing an ISM on the barriers towards SSCM. There has been a debate regarding how many experts should be consulted during this study. Like the minimum number of experts. Please suggest.
There is nothing in the literature to specifiy exactly how many experst as a mimimum or maximum. In my opinion, the most important issue is to identify who is expert in the field. From observing similar issues in the publicaitons, 3-5 experts could be suitable.