Here are some suggestions:
It is accepted that you cannot manage, what you cannot measure. There is, therefore, a big problem with intangible capital –which plays a big role in the success of enterprises – because there is no accepted method of measuring it. This problem has been known for a long time, yet there is no fully accepted solution. Moreover, there are very few solutions proposed. Traditionally, enterprises measure their profits in monetary expression: they make a balance sheet and then find how good (or bad) the finances are; or use methods like a/the (I don't know which is better) Balanced Scorecard, which measures quantitative goals, weighting costs, time, rates of production to evaluate the organizational health. Unfortunately, none of these methods are useful to measure intangible capital.
How about companies instead of enterprises?