Action
Set up reliable processes to get critical information to you. Identify people who provide reliable, useful information. Be wary of people who try to influence you to satisfy their old, unresolved agendas. Keep in mind, though, that some unresolved issues may indicate current risks you need to address.
Risks/Opportunities/Surprises
Make sure people learn quickly to feel safe talking to you, regardless of the content of the conversation. If people think you avoid bad news then they will self-censor and avoid warning you of the 'predictable surprises' that could undermine your business and career.
Remember that organisational politices, personal ambition and the desire to be accepted by you as the new leader can all lead people to skew information, even hard, quantitative data, so they can make a good impression, or even manipulate you into their faction.