You have plenty of mentors, that might be the problem

If I asked you to name the people genuinely in your corner right now, actual names, not roles, not vague intentions, how long would it take you to write the list? And once you had it, what would it actually be made of?

For most people, the honest answer is: mentors. A lot of mentors. Senior people who’ve been generous with advice, who you can call when you’re unsure about something, who feel genuinely supportive. And that instinct isn’t wrong, exactly. It’s just incomplete, and the gap in what’s missing is usually where careers quietly stall.

Four relationships, four different jobs

A healthy professional ecosystem actually needs four distinct relationship types: mentors, sponsors, peers, and collaborators. Each does something genuinely different. None of them substitute for the others, however much they might feel like they could.

Mentors give wisdom and guidance. They’re relatively easy to find, because most senior people are happy to help someone curious and respectful of their time. But research into developmental relationships is blunt about the ceiling here: most mentoring relationships never progress past information sharing. Some add emotional support. Very few reach the point of actual public advocacy, where someone puts their own reputation on the line for you.¹

Sponsors do exactly that. They use their political capital actively on your behalf, when you’re not in the room. The evidence here is unusually strong: a 2024 review of fifty years of research found sponsorship predicts career advancement more reliably than performance alone.² It’s also, consistently, the relationship people have the least of, and the one that matters most.

Peers walk alongside you. They’re reciprocal, often dismissed as not senior enough to matter, and yet a large-scale study of professional networks found that exactly this kind of moderately weak tie, people you trust but don’t share all your information with, produces the greatest career mobility of any relationship type studied.³

Collaborators create value with you. They bring what you don’t have, and they connect you to networks your existing circle simply can’t reach.

Why the imbalance happens

Here’s the pattern that shows up almost every time this gets mapped properly: too many mentors, not enough sponsors, and far too few genuine peers, while collaborators tends to fade into the background.

It’s not hard to see why. Mentors feel safe. They’re affirming, accessible, and asking for their time rarely requires anything uncomfortable of you. Sponsorship is different. You cannot simply ask for it. It has to be earned, over months, by doing visible work that makes someone else look good for backing you. That’s a much harder thing to pursue deliberately, so most people don’t, and end up with a network heavy on the relationship that asks the least of them.

Peers suffer for a different reason. They don’t feel urgent. There’s no obvious power differential, no sense that this relationship will move things quickly, so they get squeezed out by the pull of upward relationships, even though the research suggests they’re doing some of the most useful work in your network.

The relationship that’s often already half-built

Where we often lack focus is with Sponsors, but the good news is that sponsorship rarely requires starting from nothing. It usually requires noticing who has already seen your work, even briefly, and deliberately building on that, rather than searching for someone entirely new to approach cold. The same is true of peers and collaborators: the colleague at your level who you already know reasonably well or are in the midst of co-delivering a piece of work with is very often the most underused relationship in your entire network.

A question to sit with

If you mapped your own relationships honestly right now, mentors, sponsors, peers, collaborators, which quadrant would be emptiest?

And is there someone already in your orbit, who’s already seen some of your work, who could genuinely fill that gap, if you actually asked them for something specific?

Sources

¹ How to Do Sponsorship Right. Harvard Business Review, Nov–Dec 2022, 103(12):110–119. hbr.org/2022/11/how-to-do-sponsorship-right

² Does Sponsorship Promote Equity in Career Advancement? Journal of General Internal Medicine, 39(3), 2024. doi.org/10.1007/s11606-023-08542-4

³ A Causal Test of the Strength of Weak Ties. Science, 377(6612), 2022. doi.org/10.1126/science.abl4476