Different church traditions handle services differently.  Some have a worship leader (or in some more formal settings, perhaps a chairperson).  Others expect the preacher to lead the service.  If you fall into the latter category, some thoughts:

1. Being a gifted preacher doesn’t mean every public speaking activity is therefore covered in one person. The preacher may not be the best person to introduce and lead songs, or to give weekly announcements (a very tricky thing to do well), or to give a thought for the children (if your tradition includes such a thing), or offer a lengthy pastoral prayer, etc.  I am not a huge fan of getting people up front just to give them the experience, I like to see things done well (especially in a larger church), but why not put in the effort and resources to a team of service leaders / children’s talk givers / announcement makers, etc.?

2. The preacher may be a better preacher if they can focus on that. The time before preaching can be a good time to prayerfully consider the message and the listeners.  The introduction can strike a chord more effectively if that voice hasn’t already been up front for the whole service.

3. The preacher may or may not be a good person to input into the content of the rest of the service. Some preachers love to craft song sets to set up the sermon.  Others just pick their favourite four or five songs whether they fit or not.  One size doesn’t fit all.

Sometimes I lead the service, sometimes I don’t.  There are advantages both ways.  One advantage of having a speaker lead the service in a multi-speaker church is variety (but this might be better achieved through resourcing a service leading team).  One advantage of having a speaker not lead the service in a single-preacher church is variety.  But the greatest goal is not variety, it should be quality . . . honouring the Lord with the best service possible, and engaging the people in the most effective way possible.