1st Timothy: Designed for Gospel Clarity

We are starting a new series today from the book of 1st Timothy. If you could tell the church that it needed to focus on, or address, one key issue to make it more like what you think is supposed to be, what would you address?  Paul writes to Timothy and the church at Ephesus, which has gotten distracted by minutia, and addresses a central issue to call them back to functioning as God designed.