Ward Temple and Family History Leader Options

    The Church Handbook of Instructions gives two options for the identification or establishing of a ward Temple and Family History leader.   The first is that of a ward calling.  This is to be a Melchizedek Priesthood holder, selected by the ward bishop, probably with the support of the Elders Quorum and Relief Society Presidents, and called by a member of the Bishopric, sustained in Sacrament Meeting, and set apart by a member of the Bishopric.  
    The second option is for a specified counselor in the Elders Quorum presidency to be assigned to carry that responsibility, if approved by the Stake President.  
    What are pros and cons between these two options?
    According to the opinion of a FamilySearch system administrator we know, the second option is probably provided for small wards and branches, but generally isn’t preferable for Utah-sized wards and stakes.  According to several Elders Presidents we queried, their presidencies have so many different responsibilities, their counselors would have difficulty in finding time to do this calling well.  And many Elders Counselors may not have the background or experience to provide the most effective leadership for temple and family history matters.  Finally, if a Elders Counselor option is used, continuity in leadership for temple and family history work in a ward will be compromised whenever new quorum leadership is called, which then eliminates the current temple and family history leader in the ward.