Following his retirement, Bumpstead was appointed manager of Athenian League club Wingate. Bumpstead later joined Brentwood Town, managing the club to promotion to the Southern League Premier Division. In 1970, following Brentwood's merger with Chelmsford City, Bumpstead was named manager of Chelmsford. Bumpstead lasted in the role for four years, before ending his association with the club after two months in a general manager role, following the appointment of Syd Prosser as manager.[3]
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