What is a succinct report? Could it be 10 pages or less? One reads that IBM decision papers are limited to that length, and we all recall the single-sheetRingo Sho approach to important decisions at Toyota.
As to overall plan format, I-B-C is, as always, recommended for your consideration.
A results-filledexecutive summary (ES) should lead off the plan.
Preview of DMBA-620,-WeeK-12.doc
Preview of DMBA-620,-WeeK-12--exec-summ.docx