Almost everyone has experienced the excitement and sense of optimism that comes with a new job. Many new managers, mindful of first impressions, often seek to fit in and not make waves. Often times this self-imposed complacency is reinforced by their colleagues who support them “easing in.”
This approach may work fine for a person in an entry level position, but it is wholly unsuited to senior level management role. I have long agreed with Michael Watkins of Harvard Business School that first impressions are made nearly instantly, are difficult to change, and that a senior executive has only 90 days to establish success and a positive career trajectory.
Here is a short video by Michael Watkins talking about how to secure early wins. Additionally, I highly recommend his book The First 90 days; I used to give it to all new executives at my prior employer.