Two top-level executives are leaving Fair Isaac Corp., the Minneapolis company best known for its FICO credit score that has been struggling to turn itself around financially.

Chief Operating Officer Michael Campbell, who oversaw sales for the company, is leaving for personal reasons, Fair Isaac said Tuesday. He is stepping down from his executive role immediately, but will stay with the company, which does business under the FICO name, through year-end.

Laurent Pacalin, FICO's chief marketing officer, is taking on a transitional role until April, when he will also leave the company. Campbell has been with the company since 2005; Pacalin since 2008.

FICO will hire a single executive to oversee an integrated sales and marketing department.

These are only the latest executive-level personnel changes at FICO this year.

It was previously announced that John Emerick, vice president of corporate development, is also leaving Dec. 31.

Thomas Bradley, the company's new chief financial officer, started in April after Charles Osborne, CFO since 2004, retired.

FICO has floundered in recent years as the mortgage and credit crises paralyzed the financial sector it relies on for business.

In the third quarter, sales in FICO's four divisions were down, and the company reported earnings of 35 cents per share, or $17.1 million, down from 49 cents per share, or $23.8 million a year ago. Analysts were expecting 41 cents per share.