Churches have similar stages that they go through as they grow and even decline. As a church grows it needs to solve a new set of problems that were nonexistent when it was smaller. Suddenly the old programs, staff structure, and leadership roles need modification. Churches that are either unaware of these changes or ignore them tend to get stuck at a certain growth level. McIntosh helps identify the normal plateaus and makes general recommendations to move to the next level.
One example is that McIntosh claims that churches normally need a pastor for each 150 people. He then suggests that if a church gets close to 125 people, the church should add another pastor to the staff.
Though the solutions were fairly general, there was enough there to justify reading the book. I would recommend it.