I’ve been in this conversation more times than I can count.
A TD or L&D leader pulls me aside after a webinar, or messages me, and asks the same question: which personality assessment should we be using with our leaders? DISC? Enneagram? CliftonStrengths? Hogan
I’ve stopped answering that question directly. Not because it doesn’t matter — it does — but because it’s almost never the right first question. And I want to tell you why.
Here’s the pattern I’ve watched play out for 10 years of building in this space:
The assessment runs. The workshop is actually pretty good — people have real conversations, things click that hadn’t clicked before. Managers leave thinking this is going to change how the team works.
Six weeks later, the reports are in a folder nobody opens. The 1:1s look exactly the same. Someone quietly asks whether the organization should try a different assessment next year.
It’s not the tool. It’s never the tool.
According to a DDI webinar poll, 53% of HR and L&D professionals say the top reason personality assessments fail to drive development is “lots of data but no clear next steps.” Read that again. Not “the tool was bad.” Not “people weren’t engaged.” The data existed. Nobody knew what to do with it.
There are usually two reasons for that. The first: the assessment was chosen without a clear picture of which specific leadership problem it was designed to solve. The second: even when the right tool was used, the insight had no delivery mechanism to get it from a report into the conversation that needed it. This framework addresses both.
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How to choose the right personality assessment for your leadership team
1. Match the assessment to the leadership problem you’re trying to solve
The question TD leaders most often ask me is: which assessment is best for leadership teams?
The question I wish they’d ask instead is: what specific leadership problem are we trying to solve, and which assessment was built to answer it?
Most major personality assessments are valid instruments for what they measure. DISC is not a better or worse tool than the Enneagram in any absolute sense. They were built to measure different things. When a team uses a self-awareness instrument to solve a communication friction problem — or a strengths assessment when they needed to understand how conflict surfaces — they’re not working with a bad tool. They’re working with a MISMATCH between the question they’re asking and what the instrument was designed to answer.
So flip the question. It’s not which personality test is best for leadership teams. It’s which test was built to answer the specific leadership question your organization is actually working on.
Here’s what that looks like. Not a ranking — a decision framework. Match the instrument to the goal.
Goal: build self-awareness in individual leaders
The Enneagram and 16 Types (MBTI) are designed for depth of self-understanding — how a person’s motivations, habitual patterns, and stress responses shape their leadership behavior. A manager who has never been able to explain why they shut down under pressure often finds that language in one of these profiles. Use-case boundary: these tools don’t predict how two specific people will interact, or explain observable team behavior. That’s not a flaw. That’s the edge of what they were designed to do.
Goal: improve team dynamics and day-to-day interaction
DISC is purpose-built for this. It maps observable behavioral tendencies — how someone communicates, responds to conflict, processes urgency — rather than internal psychology. A manager can use DISC to anticipate how a High D and a High C will read the same ambiguous situation differently, or calibrate feedback to someone who needs deliberate processing time vs. someone who wants the bottom line first. DISC doesn’t explain why someone behaves the way they do. It shows how. For team dynamics work, that’s often the more useful data.
Goal: identify and activate individual strengths
CliftonStrengths (StrengthsFinder) was built for strengths activation, not behavioral mapping. It identifies a person’s dominant talent themes and is designed to anchor development in what someone already does well — not what’s missing. It works well for high-potential programs, for managers who default to gap thinking, and for coaching conversations oriented toward growth. It’s less useful for diagnosing conflict patterns or communication friction — that requires behavioral-tendency data, not strengths data.
Goal: executive development and succession planning
Hogan assessments — including the Hogan Development Survey, were designed for senior leader development and executive selection. They measure performance-based personality and the derailment risks that emerge under pressure: behaviors that work at one leadership level and become liabilities at the next. For high-stakes succession work or executive coaching, Hogan-class instruments offer the right validity and depth. They’re not the right fit for a broad team rollout.
Goal: build emotional intelligence and interpersonal effectiveness
Blue EQ measures EQ dimensions directly — self-awareness, empathy, social effectiveness, emotional regulation. For leadership programs that center on relationship quality, psychological safety, or navigating difficult conversations, Blue EQ measures what the program is actually trying to move. It’s not a substitute for a behavioral instrument like DISC. It’s measuring a different dimension of the same person.
If you only take one thing from this section, take that: match the tool to the goal.
2. Have a strategy for getting the insight into the flow of work
Here’s the part I find harder to say, because I’ve watched incredible organizations run incredible assessments and still end up right back where they started.
Even perfect data fails if it has no delivery mechanism after the workshop ends.
The forgetting curve tells us why. Research on training retention consistently shows that within a week of a workshop, participants retain as little as 20% of what they learned. Without spaced practice and application in context, assessment insight follows the same curve as any other training content: vivid on the day, mostly gone within a week, and largely inaccessible three weeks later — right at the moment a manager is sitting across from someone in a difficult 1:1 and could actually use it.
Long-term retention — the kind that produces observable behavior change between talent reviews — requires that insight be retrieved and applied in context, repeatedly, over time. That’s the function of a behavioral infrastructure: a system that puts the right data in front of the right person at the moment it’s relevant. Not at the workshop. At the 1:1.
The thing that changes outcomes isn’t the quality of the report. It’s whether the insight shows up when it matters.
When a manager gets a Slack notification 10 minutes before a 1:1 — showing how the person they’re about to meet processes feedback, what communication style lands best, where conflict typically surfaces in their profile — that data functions differently than a PDF they’d have to remember to open. It’s there at the moment it can actually be used.
That’s the real job. Not generating more assessment data. Activating the data that already exists.
Most organizations don’t need a new assessment — they need to activate the ones they already have
Organizations with 1,000+ employees use an average of 20 different assessment tools. Companies with 5,000+ employees average 35. Only 9 of those are typically purchased centrally. The rest accumulate through individual coaching vendors, HR initiatives, and one-off team programs — each producing data that lives in its own portal, disconnected from everything else.
Thirty-five.
Your organization probably already owns more assessment data than you could ever generate fresh. The problem isn’t a data gap. It’s data fragmentation.
Team members have profiles in three different systems. Managers don’t know which assessment applies to which situation, or where to find the data when they need it. A team member’s DISC profile exists somewhere, but it’s not visible when their manager is preparing for a performance conversation. The Enneagram data from two years ago is in a vendor portal nobody logs into. StrengthsFinder results are in a spreadsheet that got emailed around after a team offsite.
The instinct is to consolidate — pick one assessment and standardize on it. Sometimes that’s the right call. But more often, the problem isn’t which assessment to use. It’s that the assessments you already have produce data once and then go quiet.
Assessment data isn’t the problem. Assessment abandonment is.
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What to ask before adding another assessment to your stack
If you’re evaluating a new platform — or trying to get more out of the tools already in your stack — I’d push two questions most vendor conversations never reach.
→ Does this integrate with the assessments we’re already using, or does it add another silo? If the answer is another silo, the fragmentation problem compounds.
→ How does insight from this assessment get activated in the workflow? A platform that produces reports is not the same as a platform that delivers coaching. The question is whether assessment data surfaces at the moment a manager can act on it — before the conversation, during a feedback draft, when staffing a project that will require someone to navigate ambiguity well.
We built Cloverleaf because we believed this. Now we have the data that proves it.
Cloverleaf integrates 13+ assessments — DISC, 16 Types, Enneagram, Insights Discovery, CliftonStrengths®, Blue EQ, and more — in a single platform. The point isn’t to give everyone 14 reports.
It’s to make the decision framework above executable: teams use the assessment that fits their leadership development goal, all the data lives in one place, and a coaching layer puts it in front of the right person at the right moment.
That coaching layer integrates valuable insight through the tools managers already use — Slack, Teams, email, calendar — so it appears before the 1:1, not after the moment has passed. Assessment data stops living in a report and starts functioning as infrastructure for leadership development: persistent, contextual, and available when it’s needed.
The coaching arrives before the problem. That’s the whole point.
