The ‘Insecure Manager’ Threat to Career Growth, According to Heather Monahan

In a recent LinkedIn post, Heather Monahan discusses a critical, yet often overlooked, threat to professional advancement: the insecure manager who seeks to diminish their subordinates’ achievements to bolster their own perceived importance.

Monahan, a prominent figure in business and leadership, shared a personal anecdote to illustrate this damaging dynamic. She recounts her experience as CRO of a major media company, where an opportunity to deliver a keynote at a significant industry conference arose.

“The most dangerous person in your career isn’t the competitor. It’s the insecure manager who needs you small to feel big.”

This should have been a moment of triumph, both personally and for the company. However, Monahan describes a climate where her actions were increasingly scrutinized and her moves questioned. This environment led her to seek approval for decisions she previously handled autonomously.

The Erosion of Confidence Under Insecure Leadership

Monahan details how she sent the conference invitation to the interim CEO, seeking what she perceived as a necessary validation. The response was swift and revealing:

“Doesn’t seem like this is moving revenue forward. Probably not a fit. I’ll go in your place.”

The CEO took her place at the keynote, a decision that highlighted a deeper issue for Monahan. She realized her confidence had not vanished suddenly but had been systematically eroded. She allowed herself to shrink to make the CEO feel larger and less threatened.

“My confidence hadn’t disappeared overnight. It had been eroded quietly — and I had allowed it,” Monahan writes. “I stopped trusting my own judgment. Started shrinking so she could feel bigger. Made myself smaller so she wouldn’t feel threatened.”

Identifying the Root Cause: Fear, Not Performance

Monahan emphasizes that the issue was not a reflection of her performance, pointing to the company’s stock price as evidence. Instead, the problem lay in remaining in an environment that required her to be diminished to function effectively.

According to Monahan, insecure leaders often operate from a place of fear. They do not want their team members to shine brightly, as it might cast their own light into shadow. “Insecure leaders don’t want you to shine. They want you to stay just dim enough that they look brighter,” she asserts.

A Call to Action for Professionals

Monahan’s post serves as a stark warning and a call to self-awareness for professionals experiencing similar situations. She suggests that constant criticism, persistent questioning, and gradual sidelining are often not indicators of poor performance but symptoms of a leader’s insecurity.

“If you’re being criticized for everything, questioned constantly, slowly pushed to the side — it’s not about your work. It’s about their fear.”

Ultimately, Monahan encourages readers to recognize these dynamics and to have the courage to leave environments that stifle their growth. “This is your reminder to step into who you were called to be. The right doors will open and the wrong ones will close,” she concludes, offering a message of empowerment to those who may feel diminished by their leadership.