ASSIMILATION COACHING
Start Strong. Lead Faster. Make It Count.
The first 90 days in a new leadership role are critical. Research consistently shows that leaders who receive structured transition support are significantly more likely to succeed in their first year. Yet most organizations leave new leaders to figure it out on their own—leading to stalled performance, broken relationships, and costly turnover.
Sloan’s Assimilation Coaching helps newly promoted, externally hired, or role-expanded leaders hit the ground running with confidence, clarity, and the right relationships from day one.
Why It Matters
Leadership transitions are among the most common and most expensive points of failure in organizations. Without targeted support:
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40–60% of executives fail within the first 18 months of a new role (according to research from the Corporate Leadership Council and McKinsey)
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The cost of a failed executive transition can exceed $1M when you account for severance, replacement, lost productivity, and team disruption
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Even successful leaders underperform during transitions if they don’t quickly build credibility, align with team culture, and clarify expectations
Sloan’s Assimilation Coaching addresses these risks proactively, giving leaders the structure and support they need to succeed—not just survive—in their first year.
What We Focus On
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Building credibility with key stakeholders
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Aligning with team culture + strategy
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Clarifying role expectations
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Navigating political dynamics
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Creating a 90-day leadership plan
Program Snapshot
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Ideal for newly promoted or externally hired leaders
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Typically 3–6 months
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Executive coaching
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Stakeholder mapping + alignment plan
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Optional team feedback or 360 input
The Business Case
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Reduces risk of failed transitions
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Shortens time to full performance
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Improves retention and engagement
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Builds faster trust across teams
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Leaders supported by assimilation coaching are 2x more likely to succeed in year one. This statistic reflects the compounding effect of early wins: leaders who build credibility, align with their teams, and establish clear priorities in the first 90 days create momentum that carries through their entire tenure.
Frequently Asked Questions
1 / When should assimilation coaching start?
Ideally, assimilation coaching begins before or during the leader’s first week in the new role. The earlier coaching starts, the more effectively the leader can navigate the critical first 90 days. However, coaching can still add significant value if started within the first 1–2 months.
2 / How long does assimilation coaching last?
Typical assimilation coaching engagements at Sloan run 3–6 months, with weekly or bi-weekly coaching sessions, stakeholder mapping, and optional 360 feedback.
3 / Is assimilation coaching only for externally hired leaders?
No. Assimilation coaching is equally valuable for internal promotions, leaders taking on significantly expanded scope, post-M&A integrations, and any high-stakes leadership transition.