Sirrel's mission continued to gather momentum, with County promoted from the Third Division as runners-up to Bolton Wanderers in 1972-73. Then came two terms of consolidation in the Second before he shocked the Meadow Lane faithful by accepting the job of reviving the top-tier whipping boys, Sheffield United.
The Blades were at the foot of the First Division when he took over in October 1975, but the rot at Bramall Lane was too entrenched for a speedy renaissance and they were relegated as bottom club. There followed a mid-table finish in 1976-77, but with United struggling at the outset of the subsequent campaign, Sirrel was sacked.
After only two weeks out of work, he returned to Notts County in October 1977, just in time to arrest a slide towards demotion to the Third Division. Two more seasons of reconstruction followed – which included the re-signing of Masson, who had been on his travels to Queen's Park Rangers and Derby County – before Sirrel experienced arguably his finest hour.
In 1980-81, aided by the coaching expertise of Howard Wilkinson – who was destined to manage Leeds United to the League title then become the Football Association's technical director and England's caretaker manager – Sirrel led the Magpies to second place in the Second Division, behind West Ham, ensuring a place among the elite for the first time since 1926.
At a time when Brian Clough was the talk of football for his staggering attainments across the Trent with Nottingham Forest, the older club's rise offered at least a slice of bragging rights to long-downtrodden County fans. Against many expectations Sirrel's side, bolstered by several new signings, including the gifted Nigerian winger John Chiedozie, held their own in the First Division, finishing the season in a highly respectable 15th place.
Now 60, Sirrel moved "upstairs" to become general manager, with first Wilkinson, then Larry Lloyd and eventually Richie Barker becoming team manager, but the Magpies were relegated in 1984 and again in 1985, at which point Sirrel, by now also a director of the club, resumed the reins. Thereafter he kept County in the top half of the Third Division for two more seasons before retiring in 1987.
From then on he remained part of the fabric of the club. He had a stand named after him in 1993, and in 2007 his portrait was commissioned to hang at the entrance of Meadow Lane. As he had promised nearly four decades ago, the world knew considerably more about Notts County by the time Jimmy Sirrel had finished.
James Sirrel, footballer and football club manager; born Glasgow 2 February 1922; played for Celtic 1945-49, Bradford Park Avenue 1949-51, Brighton and Hove Albion 1951-54, Aldershot 1954-57; managed Brentford 1967-69, Notts County 1969-75, 1977-82 and 1985-87, Sheffield United 1975-77; married (one son, one daughter); died Nottingham 25 September 2008.