He returned to Boston United the following year and managed the club in three Alliance Premier League campaigns between 1981 and 1984.
[2] He made his first-team debut against Bristol Rovers and played four league games during the relegation season of 1963–64 and subsequent Fourth Division campaign in 1964–65.
[5] He scored his first Football League goal on 24 August, in a 3–2 defeat by Blackburn Rovers at Ewood Park.
[7] Despite this, he tweaked his hamstring the following month and only scored two more goals in eleven further league games in 1977–78 as the "Valiants" were relegated into the basement division.
[2] He then lost his first-team place to Ken Beamish and Bernie Wright, and after three appearances under new manager Dennis Butler in 1978–79, Froggatt was sold on to Northampton Town for £8,000 in September 1978.
Froggatt was a target man forward who boasted good pace and ball-control skills.
[8] Frogatt was appointed manager at Alliance Premier League club Boston United in 1981.