Be aware that you will sometimes need to brand when there is no brand. To create consistency when none exists. To develop guidelines when you know they will be retracted later on. Take the Total Branding approach and accept this reality as a given. Don't get upset - take it as an opportunity to expand your skills in strategic thinking and implementation. Remember that
1. The brand exists anyway - whether or not someone "decides" that it does
2. There is never such a thing as total brand alignment; and
3. Even partial alignment is better than none.
Now get out there and do your best.