In the excerpt of the text - “are especially critical for workers and managers in a globalized economy defined by its unpredictability and dynamism.” - (lines 39 - 41) the possessive pronoun its refers to
In the excerpts “... by pitching in on other assignments …” (lines 17-18) and “ask any questions that might come up right then and there” (lines 65-66), the verb phrases ‘pitching in’ and ‘come up’ mean, respectively