Did you know that when an election is on the horizon it is easier to get action out of a politician? How likely is it that you will get something new after a budget has been passed? The timing of events can affect your advocacy negatively or positively.
Therefore, it is a good idea to think about where "they" are in the political cycle? Where are "they" in the budget cycle? Knowing these things can help you to be more efficient as you advocate. When you know the way they operate then you can plan longer term so that your efforts line up with their processes.