Week 23 Day 7: Assignment: Review Your Last Three Hires for Pattern Bias

List the last three people you hired or significantly influenced the hiring of. For each one, note their background, education, communication style, and how they approach problems. Look for patterns. If all three share similar backgrounds, similar styles, and similar approaches, you have been hiring for culture fit. If they bring genuinely different perspectives, you have been hiring for culture add.

Here is the audit protocol. For each of your last three hires, answer these questions. Background: where did they work before? If all three came from similar companies, you have a pipeline bias. Education: what did they study? If all three have the same degree, you have a credential bias. Communication style: how do they express their ideas? If all three communicate the same way, you have a style bias. Problem-solving approach: how do they tackle new challenges? If all three start from the same angle, you have a cognitive bias. Now compare all three profiles against your existing team. Map the team as a whole: what perspectives are overrepresented? What perspectives are missing? Are there entire categories of experience -- industry, cultural, educational, working style -- that nobody on the team represents? The gaps are your culture-add targets for the next hire. Finally, examine the hiring process itself. Who were the interviewers? If the same people interview every candidate, their biases compound. Did you use structured behavioral questions consistently, or did different interviewers ask different questions? Inconsistent interviews produce inconsistent evaluations, which default to similarity preference. Add the audit results to your Leadership Operating Manual under 'Hiring Patterns.' Include your culture-add targets and a commitment to refer back to them when the next role opens.

The pattern audit methodology draws on research on 'systemic bias in selection' (Nishii and Mayer, 2009), which demonstrates that hiring biases are not individual events but cumulative patterns that compound over time. Their research found that teams hired by the same manager over multiple rounds show increasing homogeneity -- each hire reinforces the pattern, narrowing the team's perspective set progressively. The pipeline bias detection (similar source companies) reflects what Fernandez and Weinberg (1997) call 'network-based hiring' -- the tendency to recruit from personal and professional networks, which systematically reproduces the demographic and cognitive profile of the existing team. Research by Castilla (2015) on 'organizational accountability in hiring' found that simply tracking and reviewing hiring patterns -- without any other intervention -- reduced demographic homogeneity in new hires by 18%, because awareness of the pattern disrupted the automatic preference for similarity. The interviewer rotation recommendation addresses what psychologists call 'shared information bias' (Stasser and Titus, 1985) -- the tendency of groups to discuss information that all members already share while ignoring unique information held by individual members. When the same interviewers evaluate every candidate, they develop shared evaluation frameworks that converge on the same candidate profile, missing attributes that different interviewers would have detected.