10 excellent reasons to under-program your church from Jared Wilson. Check them out:

1. You can do a lot of things in a mediocre (or poor) way, or you can do a few things extremely well.
2. Over-programming creates an illusion of fruitfulness that may just be busy-ness.
3. Over-programming is a detriment to single-mindedness in a community.
4. Over-programming runs the risk of turning a church into a host of extracurricular activities, mirroring the “Type-A family” mode of suburban achievers.
5. Over-programming dilutes actual ministry effectiveness.
6. Over-programming leads to segmentation among ages, life stages, and affinities, which can create divisions in a church body.
7. Over-programming creates satisfaction in an illusion of success; meanwhile mission suffers.
8. Over-programming reduces margin in the lives of church members.
9. Over-programming gets a church further away from the New Testament vision of the local church.
10. Over-programming is usually the result of un-self-reflective reflex reactions to perceived needs and and an inability to kill sacred cows that are actually already dead.

Be sure to read his additional commentary on the points as well.  These points are so important to consider that I cannot recommend them highly enough. Seriously, one of the most basic ways of undergoing local church reformation is considering the ministry design and labor to “under-program” your church.