Born in Glasgow, Sirrel started his professional career at Celtic in 1946, but made just 13 appearances in three years before signing for Bradford Park Avenue in 1949, but again failed to get regular first team football, playing only 12 matches.
[5] After being appointed to the role full-time, he spent two full seasons at the helm of Brentford where the club finished in 14th and 11th-placed positions in the Fourth Division.
However, Notts would lose just twice more all season and secure second place and promotion into the Second Division following a final day 4–1 victory over Tranmere Rovers.
Sirrel however announced that he would leave Notts County for Sheffield United and was appointed their new manager on 21 October 1975, replacing Ken Furphy.
[6] The Blades had suffered an awful start to their First Division season and were bottom having recorded just one win in 13 games up to Sirrel's appointment.
With little money to spend, Sirrel was unable to stop the slide at Bramall Lane and the following season United finished 11th in the Second Division.
The 1977–78 season started in similar fashion and on 27 September 1977, Sirrel left Bramall Lane with United struggling at the foot of the table.
[citation needed] Sirrel returned on 5 October 1977[7] and found a Magpies side struggling to avoid relegation back into Division Three.
Despite being favourites to make an immediate return to the Second Division, some memorable wins ensured that the Magpies would finish comfortably in midtable in their first season back in the top flight.
Lloyd was dismissed the following season with the Magpies staring a second consecutive relegation in the face and Sirrel was again appointed manager in an unsuccessful attempt to avoid the drop.
[10] Sirrel was buried on 7 October 2008 as fans and great figures from the world of football alike turned out to pay their respects to the Magpies legend.