Kindly note that any quality in Strategic Decision is related to the Value Chain what it makes in its progress. In this reason please pay attention on the strategies like as Growth and Productivity and relevant synergy as Development what is existed by them.
In this case, you can use the Balanced Score Card (BSC) model to evaluate the quality of the strategic decision.
Firstly you should to find data or survey inserting to each strategy as Growth and Productivity. Should you use the linear regression so you can achieve the relevant linear curve involving the variable Growth (as X variable) and Productivity (as Y variable) and Development (as respective equivalent).
You can analyze by "Width of the Source" and relevant "Tilt" as the Positive Width and the Positive Tilt are the best quality or in the other word the "SO" area which is a "Star" position for any organization or individual.
May I recommend you to use a Quality Balance for your evaluation and measurement. I do hope to be useful for you as it is another scale for measuring the Quality in the framework of SWOT in relation to accounting. As you know one of the methods for achieving a good result is transferring the variables into the financial framework.
This was introduced for the first time by Stephen Robbins as you can find ofcourse a paragraph about it in his book titled "Organizational Behavior".