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Carlisle United was the League One club managed by Nigel Pearson. Pearson, a former defender, began his managerial career with Carlisle in 1999. During his four-year tenure, he guided the club to promotion from League Two and established them as a competitive force in League One. Pearson's success at Carlisle laid the foundation for his subsequent managerial appointments at Southampton, Leicester City, and Watford.