Your selection of these people should not be on the basis of your understanding (of them), confidence and your good impression, because people catch the ideas of the officers through affectation and personal service and there is nothing in it which is like well-wishing or trustfulness. You should rather test them by what they did under the virtuous people before you. Take a decision in favour of one who has a good name among the common people and is the most renowned in trustworthiness, because this will be a proof of your regard for Allāh and for him on whose behalf you have been appointed to this position (namely your Imām).