BEST ANSWER: Try to gauge the political style of the firm and be guided accordingly. In general, fall back on universal principles of effective human relations – which in the end, embody the way you would like to be treated in a similar circumstance.
Example: “Good human relations would call for me to go directly to the person and explain the situation, to try to enlist his help in a constructive, positive solution. If I sensed resistance, I would be as persuasive as I know how to explain the benefits we can all gain from working together, and the problems we, the company and our customers will experience if we don’t.”
POSSIBLE FOLLOW-UP QUESTION: And what would you do if he still did not change his ways?
ANSWER: “One thing I wouldn’t do is let the problem slide, because it would only get worse and overlooking it would set a bad precedent. I would try again and again and again, in whatever way I could, to solve the problem, involving wider and wider circles of people, both above and below the offending executive and including my own boss if necessary, so that everyone involved can see the rewards for teamwork and the drawbacks of non-cooperation.”
“I might add that I’ve never yet come across a situation that couldn’t be resolved by harnessing others in a determined, constructive effort.”