In Table $4\mathrm{.}2,$ which one of the following is not an example of a potential weakness or competitive deficiency that a company may have?

Weaker product innovation capabilities than key rivals

Higher overall unit costs relative to key competitors

$$ No well$-$developed or proven core competencies

$$ Too narrow a product line relative to rivals' product lines

$$ Having

a single, unified functional strategy instead of several distinct functional strategies