Professional Development Plans

I have found the professional development plan assessment interesting. My district does not have a PD plan. I am using the PD section of our school improvement plan that was required for us not making AYP with one of our subgroups. The school improvement plan addresses one specific goal which is getting students with disabilities to Meet or Exceed in Reading, but has a number of strategies and activities in the area of PD to address this goal. The plan does not seem to meet many of the criteria set forth in this assignment’s rubric. The strategy section is not very specific. I wonder what effect the lack of a district wide professional development plan had on our school’s deficiency in reading. Is it common for a district to have no professional development plan?