Answer:
True
Explanation:
A core competency refers to those unique capabilities built by an organization which are hard to imitate by rivals and which give such an organization a competitive advantage over the rivals.
A casual ambiguity refers to the state of non clarity with respect to how consequences relate to the initial state of a phenomenon.
In the case of firm, the phenomenon being the built up to core competency which the rivals are unable to decipher with respect to the relationship between the firm's resources and capabilities.