Culture add over culture fit: what measuring soft skills brings to the debate

For years, culture fit has been the informal criterion that settles close hiring calls: "technically he is good, but I do not feel him in the team". Culture add proposes the opposite: looking for what the candidate brings that is different rather than what they reproduce that is common. The debate is useful, but it often stays at the level of intention. Without measurement, replacing one vague criterion with another vague criterion changes nothing.

Culture fit and its underlying problem

Culture fit starts from a legitimate intuition: a person whose values and ways of working align with the team's integrates faster. The problem is not the intention, it is the measurement.

In practice, culture fit is assessed through interview feel. That feel is massively produced by similarity bias: we judge more favourably people who resemble us, same codes, same background, same references. Culture fit then becomes the acceptable name for a mechanism of social reproduction. We detail this mechanism and its cousins in our analysis of cognitive biases in hiring.

The organisational cost is real. A team recruited on resemblance reasons the same way, spots the same signals and misses the same blind spots. On topics that require generating new options or reconsidering a hypothesis, homogeneity is a direct handicap.

What culture add changes, and what it does not solve

Culture add flips the question: instead of "does this person resemble us?", it asks "what do they bring that we do not have?". The principle is sound, it aligns recruitment with a logic of complementarity.

But framed that way, it remains just as subjective. Without a framework, "bringing something different" is measured in the same place as culture fit: in the recruiter's impression. There is even a symmetrical trap, hiring difference for the sake of difference, without knowing whether it fills a real gap in the team.

Culture add only becomes operational under one condition: knowing what the team lacks, in precise terms.

Making the debate measurable

That is exactly what a framework of behavioural competencies allows. The Rising Up framework describes 18 competencies organised into three families (Leadership & Collaboration, Innovation & Communication, Operational Efficiency), each with published definitions and observable behaviours.

From there, the culture add question becomes factual in three steps:

• Map the existing team. The mapping of behavioural competencies shows where the team is collectively strong and where it is thin. A team well equipped in rigor and planning but weak in divergent reasoning has an identifiable profile.
• Define the contribution sought. The need is no longer expressed as "someone different" but as "someone who strengthens divergent reasoning and personal initiative, without lowering the bar on rigor".
• Measure candidates on those competencies. The Soft Skills Scan assesses each candidate across the 18 competencies through contextualised professional scenarios. Complementarity is read in the gaps between the candidate's profile and the collective profile, not in the impression left in an interview.

The culture fit versus culture add debate then stops being a matter of posture and becomes a documented decision: here is what the team has, here is what it lacks, here is what this candidate brings.

Complementarity does not mean incompatibility

An important clarification: measuring complementarity does not mean systematically hiring the opposite of the existing team. Some competencies are foundations that everyone must hold at a sufficient level, whatever the role, because collective work depends on them. Others are usefully distributed across profiles.

This is a distinction only measurement makes possible. A hiring feel does not tell you whether an observed gap is a contribution or a risk. A measured profile, compared with the role's requirements and the team's profile, does.

Another often-forgotten point: behavioural skills predict professional success, contribute to it causally, and can be developed (research by James Heckman, Nobel laureate in economics). A gap identified in a candidate is therefore not a sentence, it is a starting point for a behavioural competency development pathway.

The real benefit of tooled culture add

Moving from a judgement of affinity to a measure of complementarity produces three concrete effects.

First, an explainable decision: you can tell a candidate, a team and an executive committee why this profile was selected, in terms of competencies rather than impressions. Second, real cognitive diversity, built on the capabilities mobilised at work rather than on surface criteria. Third, greater equity: what is measured is the same for everyone and documented, which protects the profiles that interview feel penalises, as we explain in our article on neurodiversity and soft skills assessment.

The market is moving in this direction: according to APEC, 41% of companies recruiting executives now formally assess soft skills, up 9 points in one year. Recognised as Deeptech by the European Innovation Council (EIC) in 2023, Rising Up provides the public framework and the in-situation measure that move culture add from intention to method.