I made a comment in my previous post about about "one guy" doing all the preaching. I wonder why that is the model. In the Scriptures elders/overseers were responsible for the teaching and spiritual oversight.
Have a look at Acts chapter six. There, some of the apostles were being bogged down by distributing food; so much so, that is was interrupting their ability to share the word of God. Seven servants/deacons were selected to take this over, thus freeing up the apostles to spread the word. And spread the word they did, as many came to be followers of the Way. I would suggest that the bulk of the teaching should be coming from all the elders of a body. Elders according to Paul (1 Tim) should be able to teach so the argument that someone isn't gifted in that way shouldn't be an issue since it is a foundational criterion for an elder.
How would that look at our church?