Create and clearly identify space for teachers to share top-of-mind issues. If your PLCs are frequently going off-track to consider issues that are important but not within your district priorities, consider when they should be voiced. For instance, if your team is struggling with a classroom management issue, when should they seek help? The answer should be clear to both you and them. Additionally, resist the urge to schedule compliance mandates (i.e. a staff training on a new PDMS software) during PLC time; doing so implies the time belongs to your administration instead of being a space for meaningful teacher collaboration.
Design PLC protocols for continuous improvement. A mid-year break can be a great time to stop and take stock, but the real key is to think of this work as continuous—and not always linear. The more you can make necessary adjustments and corrections in an ongoing fashion, the more likely you are to stay on track towards your outcomes.