Every church has to decide why they exist and how they are going to accomplish the God-given mission. The mission has already been decided in Matthew 28 when Jesus said "Go ... and make disciples." But how a church does that is up to the local leadership ... that's called vision.
The great thing about Christianity is that it can be contextualized. God built this into the fabric of our faith. Yes, there are certain non-negotiable beliefs and practices but there is enough flexibility for the faith to thrive in any culture or generation.
While there are a million different ways to "do" church, there is only "one" way to do it at PCC. Whenever you have more than one vision - that's called division. Churches that don't stand in unity around the vision will eventually implode and crumble.