Preparation for a Sermon?

Gene Redlin at Northern Gleaner questions the necessity of preparation for a sermon. I'm convinced that the Protestant doctrine of the pulpit is simply a tradition within Protestantism, and not mandated by the bible. Preaching is biblical and quite necessary, but how the pulpit is worked out isn't. Often, the pulpit takes precedence over other biblical necessities when we assemble, seen most when the preacher goes over his normal time and other things are squeezed out. Many pastors study all week as a "full time job" simply in preparation for their sermon, when the bible calls them to shepherding of the flock. Shepherding requires spending time with the sheep; time that sermon prep often cuts out.

Also, a high view of the pulpit can lead to other manufactured practices or twisted beliefs. Don't you dare get up to go to the potty during the sermon in some churches. Even if God gave you a small bladder. Sermons are often tailored to the length of a cassette tape, yet can go just far enough beyond the end of the tape as to render the tape less than ideal.