You and me both. It would have surely simplified creating my job description.
As to PHB's interpretations: he realizes his whole status in the firm is determined by the number of engineers report to him, regardless of their ilk; a "Personal Lifestyle" Engineer is just as valuable as any other. (c.f., yesterday's strip.)
He tries NOT to have to understand their jargon because (1) he will display his ignorance, once again, and (2) he might have to actually make a decision.
Wally is correct: how would she understand an activity in which nothing goes in, nothing goes out and yet this zero sum game is regarded as valuable enough to pay for it, and the coffee is provided for free as well in order to keep things "going" as it were. Here's an existential question: what would a vacation be for this man?