I recently coached two leaders who described different versions of the same struggle.
The first had become so supportive of their firm, colleagues, and clients that they worked beyond their limits during a family vacation. Their frustration was palpable, and their commitment to change was clear, recognizing the need to reallocate much of the work they absorbed.
The second leader put the problem this way: “Because I care deeply about the quality of our work and know that I’m willing to put in whatever hours are necessary to complete a task or project, I accept more responsibility than what’s sustainable.” The downside of this pattern is that it’s costing them time away from strategic thinking, staff development, and family time.
These are just two of several leaders I’ve worked with whose experiences reflect a broader leadership problem. DDI’s “Global Leadership Forecast 2025” report found only 30% of more than 10,000 leaders surveyed believe they have enough time to fulfill their responsibilities with the depth and diligence required.
Certified public accounting (CPA) firms already understand this challenge: They routinely assess capacity by comparing the demand for client services with the people resources available to perform the work, with similar dynamics at play in business and industry contexts. Ascending leaders should apply similar discipline to themselves.
For leaders, managing capacity is about more than managing time—it’s a missioncritical responsibility. Here, I explore five keys to help you build more sustainable leadership habits.
Overcommitment often grows from strengths, not weaknesses. Some leaders set high goals, take ownership, and keep pushing until the work is done. Others are quick to step in when a colleague or client needs help because they hate the thought of letting someone down.
While those qualities contribute to success, they can also become barriers to your leadership effectiveness when overplayed. Achievement can drive you to assume that you should personally carry every important responsibility, and supportiveness can lead you to absorb work that belongs elsewhere.
Before accepting a new request, pause long enough to examine what’s driving your response. Does this request warrant top placement as a current business priority? Are you trying to prove your value, protect your reputation, or avoid disappointing someone? Knowing the answers to these questions can help determine the root cause of the problem.
Your personal vision, purpose, mission, and values can help you decide which opportunities deserve attention and which ones don’t. Without that foundation, the newest request can quickly become your highest priority.
Every time you say yes to something new, something else receives less time and attention: strategic thinking gets postponed, staff development becomes rushed or reactive, or family commitments receive whatever remains. This is especially risky for ascending leaders. The work that earned your last promotion may have involved producing, reviewing, and solving problems yourself. At the next level, however, the work increasingly involves thinking ahead, developing others, strengthening relationships, and improving the business. It’s important for leaders to remember that continually absorbing operational work can keep you from doing that higher-level work.
Many high performers plan around the wrong measures of capacity. The three to consider are:
Maximum capacity has its place during a true crunch period, like tax season or year-end work, but the danger comes when a short-term sprint becomes your normal pace. Sustainable capacity must leave margin for client issues, staff changes, difficult decisions, preparation, and staff development. Leadership work may be less visible than task work, but thinking, planning, coaching, and building relationships still require time and energy, as do personal and family situations that arise outside of work.
Your true sustainable capacity is probably lower than what you perceive it to be. That may feel uncomfortable if you’ve built your reputation as a “go-to person” who’s always there to help. Yet, a more honest assessment creates the space needed to lead well for the long haul.
One reason leaders overcommit is that they’re overly optimistic about their future availability. In their research paper, “Resource Slack and Propensity to Discount Delayed Investments of Time Versus Money,” researchers John Lynch and Gal Zauberman explain how people generally expect to have more available time (or slack) in the future than they have today. Interestingly, as demonstrated through their experiments, the researchers found that expectation was stronger for time than money.
For instance, leaders tend to recognize that next month’s budget will still have limits, but they often treat next month’s calendar as more flexible and open than it really is. They underestimate how quickly client needs, meetings, emails, family obligations, and unexpected problems fill that time (i.e., the capacity they imagined never materializes). It’s a phenomenon called “the planning fallacy.”
One practical safeguard from this is to shrink the amount of your calendar you consider available. Stop treating every unscheduled hour as open capacity. You should also account for preparation, follow-up, interruptions, and strategic thought. Make sure to also leave room for responsibilities you can’t predict, and block time on your calendar to ensure you have margin for these dynamics.
Overall, it’s best to evaluate a future request against the capacity you have today, not the additional capacity you hope will appear later. If you wouldn’t accept the commitment for tomorrow or next week, think carefully about accepting it for next month. That margin gives you room to lead when an unexpected client, staffing, or personal issue arises. Shrink your calendar before other demands shrink it involuntarily.
Managing capacity doesn’t require a blunt response, such as “No, I can’t do it.” Effective leaders recognize the business reality and help others see the available choices. Instead of automatically saying yes, make the consequences of the new request more visible. Here are some examples to help you frame your response:
These responses account for both your personal limits and your organization’s priorities. Silently absorbing more work may feel helpful, but it increases the risk of missed deadlines, lowerquality work, neglected leadership responsibilities, and burnout from an unsustainable pace.
The two leaders in my coaching conversations didn’t need more dedication. They needed a more accurate view of their capacity and more intentional choices about where to invest it.
Sustainable leadership begins with an honest assessment of what you can carry. From there, you can make better choices, protect needed margin, and have clearer conversations about priorities. After all, leadership isn’t demonstrated by how much you can absorb—it’s demonstrated by how wisely you steward your capacity, priorities, and commitments.
