Jackett spent his entire playing career with Watford and scored 34 goals in 428 games, placing him seventh on the list of the club’s record appearance makers.
He also won 31 caps for Wales, making his debut in a 1-0 Euro 84 qualifying victory over Norway in September 1982.
Jackett featured for the Hornets in the 1984 FA Cup final, but knee problems and a succession of operations forced him to hang up his boots at the age of just 28.
Jackett remained at Vicarage Road as a member of the coaching team and took the top job in 1996 when Graham Taylor was named of director of football.
But that lasted just a year and, with Taylor returning to the manager’s role, he became first team coach.
The duo enjoyed a successful partnership, as they led Watford to successive promotions into the Premier League.
He departed alongside Taylor in 2001 and then spent three years assisting Ian Holloway at QPR.
Jackett took charge of fourth tier Swansea in April 2004 and guided them to automatic promotion – and FAW Premier Cup glory – in his first full season.
They almost achieved a second successive promotion, but lost on penalties to Barnsley in the play-off final.
But the Welsh side still picked up a couple pieces of silverware, lifting the Football League Trophy and defending the FAW Premier Cup.
Jackett left Swansea in February 2007 and had a spell as Manchester City’s reserve team boss before taking up the vacant managerial post at Millwall.
They reached the League One play-offs in his first full campaign at the helm, seeing off Leeds before losing to Scunthorpe in the final.
It was a similar story the following year – but this time with a happier ending.
Having seen off Huddersfield over two legs, a goal from Paul Robinson – later to sign for Pompey – saw off Swindon at Wembley and secured promotion.
There was almost a third successive play-off adventure, but Millwall dropped out of the Championship race on the penultimate weekend.
The 2012/13 campaign saw an unlikely run to the semi-finals of the FA Cup, where the Lions were beaten at Wembley by eventual champions Wigan.
But their Championship status was only secured on the final day and Jackett stepped down citing the need for a new challenge.
Jackett was soon appointed Wolves boss and immediately had another promotion success to put on his CV.
They romped to the League One title with a record tally of 103 points, winning 31 games and scoring 89 goals in the process.
Wolves narrowly missed out on a place in the play-offs the following season and Jackett left last summer following a takeover of the club.
He had a short spell as Rotherham manager last season and has most recently been working in Tottenham’s academy.
He is also a graduate of the LMA's Certificate of Applied Management at Warwick University.
Source: Portsmouth FC