D&C 107

As the Lord revealed the structure and organization of the priesthood with its many offices, appendages, and leadership quorums and presidencies, He also revealed His manner of administration saying -

"...every decision made by either of these quorums must be by the unanimous voice of the same; that is, every member in each quorum must be agreed to its decisions, in order to make their decisions of the same power or validity one with the other—" (Doctrine and Covenants Section 107:27)

A doctrine of unity seems apparent as presidencies and leadership must be unanimous to bring sufficient validity and power to that decision. Suggesting in my mind that each member must receive guidance of the same Spirit in any decision. Also suggesting that the Church is not a democracy where majority rules in doctrine or policy. The doctrine of unity then requires -

"...decisions of these quorums, or either of them, are to be made in all righteousness, in holiness, and lowliness of heart, meekness and long suffering, and in faith, and virtue, and knowledge, temperance, patience, godliness, brotherly kindness and charity..." (Doctrine and Covenants Section 107:30)

It is apparent that the burden is on leaders to prepare and live by these principles in order to be guided in unity. The Lord promises that as they strive and live in this manner or -

"...if these things abound in them they shall not be unfruitful in the knowledge of the Lord." (Doctrine and Covenants Section 107:31)

That is why we can claim that the Savior is the Head of this Church and continually leads the Church according to His mind and will.