It depends exactly what your background is. There are a few actuarial positions in the FS/insurance practices but it's not a major hiring path. Similarly, you might be able to leverage executive compensation experience into valuation work, but it'd be rare.However, if you've been working on organisational change or design, leadership development, etc. then there are established "organisation" practices. And most of the MBBB (depending on office) have been trying to expand their "functional effectiveness" practices - e.g. HR function effectiveness, finance function effectiveness - so that would be a good route in.
