If you were announcing your newest top executive targeted to the Wall Street Journal, you'd more likely provide a than a , which would be what the papers feature writers might prefer.

The correct words for the blank spaces are: straight bio; narrative bio.

Explanation:

Straight biographies relate objective, factual events of an individual. Using this approach the relevant information of that person over a certain topic is provided moreover when there is an intention of remarking a special prize or responsibility that person was given. On the other hand, narrative bio implements subjective opinions about one individual including memories of that person to make the audience have an idea of why the author of the article thinks in such a way of that person.

Then, when announcing an individual who has recently been assigned an important managerial charge, it is more suitable to use the straight bio rather than the narrative bio to show the person earned that position by merit and not preference.