I decided to cut & paste from the JWs own publications so I can give them a copy so they can recreate the most important event in Watchtower history - inspection & appointment of the FDS: :
WTS Book – God’s Kingdom Has Approached (F Franz) chap. 17 pp. 349-357 The “Slave” Who Lived to See the “Sign” ***
TIME OF INSPECTION BY THE SLAVE’S MASTER
38 Without a question of doubt, it was a real time for inspection of the Master’s “slave” class. All the facts of the case argue that the Master came for the work of inspection at the time. …Had his appointed slave done as he was assigned to do, namely, give to the “domestics” their “food at the proper time”? The master needed to make an inspection.
40 The serving of food, the right sort of food, at the proper time was the issue. It had to be according to this that a decision must be rendered by the returned master….Down to 1919 C.E. they had endeavored to give “food at the proper time”…. Not only was the regularity in serving the spiritual food a problem, but the quality of the food itself was to be considered….
APPOINTED OVER ALL THE MASTER’S BELONGINGS
….. When he returned to his “household staff” in 1919 to make an inspection of all his “domestics,” he did so in a royal capacity ….
51 On inspecting the remnant of his anointed disciples in the year 1919 C.E., the reigning King Jesus Christ did find the appointed “slave” faithful and discreet in the feeding of his “domestics.” Accordingly, he appointed this “slave” class over all his belongings.
Please use the link to check just a small sample of the quality of spiritual food that led to the appointment by Christ of the FDS in 1919: