Merrick Bank

Rob Duffin, Chief Credit Officer

Building Credit Decisions on Data, Discipline, and Trust

Rob Duffin

Rob Duffin’s career at Merrick Bank reflects a conviction that sound credit decisions begin with evidence and succeed through disciplined execution. With an academic background in statistics and business from Brigham Young University, he entered consumer lending through analytics, gaining experience across mortgages, auto refinancing, credit cards, and insurance-related financing. His early work in reporting and risk analysis introduced him to the relationship between quantitative insight and lending performance.

A move into credit risk management deepened that interest. Duffin began developing underwriting criteria for new accounts, refinances, and credit cards before joining a major credit card issuer in California. There, he helped shape acquisition strategies, credit risk models, targeting decisions, and credit line assignments while building his management experience.

In Merrick Bank, he found an opportunity to apply those capabilities within a growing institution. Joining as a senior risk analyst approximately 24 years ago, he developed prospecting capabilities that helped the bank move from quarterly to monthly credit card mailings. His team’s underwriting criteria and models supported the institution’s expansion from approximately $300 million in assets to nearly $5 billion.

A Broader Mandate for Credit Risk

Duffin subsequently assumed responsibility for the entire credit card business before becoming chief credit officer following his predecessor’s retirement. The transition brought him back to risk management with a wider organizational perspective. His responsibilities now encompass credit risk oversight, model governance, credit bureau reporting, and credit operations, including processes that support underwriting and customer verification.

For Duffin, the position extends beyond controlling losses. It provides a role in strategic planning, allowing him to connect credit policy with the bank’s objectives, economic conditions, and consumer behavior. His experience across lending, analytics, modeling, and business management informs decisions about where the institution should compete and how it should grow.

Three Tests for Every Credit Decision

Merrick Bank’s approach to non-prime lending rests on evidence rather than intuition alone. Duffin emphasizes analytical rigor, empirical assessment, and modeling to evaluate applicants and improve the customer experience, from application through online account management. Experience remains valuable, but it must be tested against what the data reveals about borrowers, lending conditions, and the broader economy.

“I want people to walk away from their interactions with me knowing that I treated them with respect and kindness.”

He evaluates decisions against three considerations: whether the underlying analysis is sound, whether the decision meets the bank’s financial requirements, and whether the resulting credit product benefits the customer. These objectives do not always align perfectly. Models have limitations, repayment outcomes remain uncertain, and lenders must balance potential returns against the risk of selecting borrowers whose performance may disappoint.

“Read the data, not the headlines,” Duffin advises aspiring credit leaders. The principle captures his insistence on separating meaningful signals from the noise of media commentary, public opinion, and rapidly circulating information.

Managing Uncertainty through Collective Judgment

Technology, competition, and changing consumer behavior continue to reshape lending. Larger datasets and improved analytical tools create opportunities for better models, while fintech companies, neobanks, and other lenders intensify competition. Consumers also research credit products more independently, improving their ability to choose suitable options while creating additional opportunities for fraud and manipulation.

Duffin approaches uncertainty through established policies, careful analysis, and collective scrutiny. As chair of Merrick Bank’s credit risk committee, he brings together representatives from lending, compliance, legal, finance, executive leadership, and risk management. This structure helps the bank assess financial exposure alongside operational, legal, and regulatory implications. Potential risks are examined, mitigating factors are discussed, and decisions proceed only after appropriate diligence.

Leadership Built on Trust

Duffin believes effective credit leadership depends on hiring people who combine technical competence with objectivity, initiative, and sound judgment. He also prioritizes professional development, giving employees opportunities to expand their responsibilities and advance. Credit decisions, in his view, cannot be made in isolation; their consequences reach across business units, making collaboration essential.

His leadership philosophy rests on treating colleagues with respect, listening to their perspectives, and building relationships that encourage honest assessments. “I want people to walk away from their interactions with me knowing that I treated them with respect and kindness,” he says. For Duffin, trust strengthens the quality of information that reaches decision-makers and helps teams navigate difficult choices.

Named among the Top 10 Chief Credit Officers for 2026, Duffin represents a leadership approach grounded in analytical discipline, balanced risk-taking, and collaborative judgment. His work at Merrick Bank demonstrates how credit oversight can support sustainable growth while considering both institutional performance and the customer’s financial journey.