While it is quite logical to hire someone with a skill full time, it doesn’t seem logical to do so for skills / abilities needed as a one-off requirement. And that is when you would want to consider engaging an external consultant.
Furthermore, for a niche set of skills or abilities that are not available internally within the organization also, you would want to consider hiring a consultant who not only comes with that expertise, but also blends well with your organizational culture.
So, what are the focus areas for which you can hire us as your consultants? Here are a few indicative areas: