Just curious if you have any philosophy about how to best handle situations like this -- which are very common in Priesthood and general church leadership.

You kindly speak to Brother or Sister X about a task that is yours to delegate as a leader. Brother or Sister X asks questions, and appears to accept the assignment willingly. You provide resources to the brother or sister who accepted the delegation, such as getting them necessary lists, framing up the task, introducing them to the people they need to work with, providing them with clearance from the Bishop or a date for whatever you delegated etcetera.

You gently agree on a realistic time frame for when the delegation is to be completed, and ask the person if they wouldn't mind letting you know the results at that time.

You remind them about the thing they agreed to, indirectly, a few days before the date they agreed to get back to you on results. Such as, in a meeting indicating how Brother or Sister X's efforts in a certain area will be complementing some other effort in the Ward, for example, so they get the reminder without feeling hounded.

The date comes and goes, the person doesn't report, and doesn't even raise it when they see you.

What do you do in this situation? What are your objectives, and how do you go about achieving them?