How can finding a BNA Portfolio on point with a practitioners tax issue be like hiring someone

Question:

How can finding a BNA on point with a practitioner’s tax issue be like hiring someone to do the research?
Portfolio
A portfolio is a grouping of financial assets such as stocks, bonds, commodities, currencies and cash equivalents, as well as their fund counterparts, including mutual, exchange-traded and closed funds. A portfolio can also consist of non-publicly...