Several years ago, I attended an SDA,  full day continuing education seminar for pastors, held at Fuller seminary. One of the classes was on homiletics. I have 4 text books , in my library, written by top preachers who are considered among the best. I was NOT impressed with the SDA class. SDA seminaries can offer competent education on expository preaching and local/division  ministerial secretaries can be fairly sharp, yet most pastors get no clue as to the challenges of leading and preaching at a church.
EG White has some written counsel as she dealt with the clergy of her time.

"The greatest help  that can be given our people is to teach them to work for God, and to depend on Him, not on the ministers."—Testimonies for the Church 7:19