They are five familiar faces to the new Boro boss, who has worked with each at various points of his playing and coaching career.
Here we take a closer look at the new arrivals who’ll be in the Boro dugout next season.
James Beattie – First Team Coach
Beattie is the most recognisable of the new names to make the move to Teesside.
The former Southampton, Everton, Sheffield United and England striker racked up nearly 150 goals in his playing career, no less than seven of those coming against Boro.
Making the move into management with Accrington Stanley, Beattie was in charge as the Lancashire club recorded a shock League Cup win against Tony Mowbray’s Boro at the Riverside in 2013.
Beattie linked up with Monk, who had been a Southampton teammate, as a first team coach at Swansea City in 2015, and held the same role alongside the new Boro new boss at Leeds United last season.
Dave Adams – First Team Coach
A former player in the Welsh Premier League, Adams began his coaching career as a 17-year-old – quickly earning his UEFA A licence followed by his Pro-Licence.
Having worked with the Welsh FA, Adams then joined Swansea’s academy as part of the club’s drive for Category One status.
It was actually after Monk’s departure from Swansea that Adams made the move into first team affairs, as assistant to Alan Curtis.
In March 2017, Adams worked briefly as Everton’s Academy Head of Coaching.
Darryl Flahavan – Goalkeeping Coach
A veteran of more than 400 appearances between the posts, Flahavan spent the bulk of his playing career at Southend United.
Among the highlights of that career was a man-of-the-match display as the Shrimpers earned an incredible 1-0 League Cup victory in 2006, against a Manchester United side containing Cristiano Ronaldo and Wayne Rooney.
In June 2016 Flahavan, also a one-time teammate of Monk at Southampton, joined the now-Boro boss’ coaching staff at Leeds United – a club where the goalkeeper had held a brief loan stint in 2009.
Sean Rush – Head of Physical Performance
Rush is another to follow Monk from Leeds United to Boro this summer, having previously held the same role with the Yorkshire club.
His time at Elland Road actually predates Monk, but was part of the backroom team as Leeds recorded a highest league finish since 2011 last season.
Rush had previously worked with Hull City, as well as rugby league club Hull FC.
Ryan Needs – Head of Performance Analysis
Having coached in the USA and Brazil, Needs’ career as an analyst began with Swansea’s academy in 2014.
As well as a Master’s qualification in Performance Analysis, Needs would study for his UEFA B and UEFA A Coaching Licences.
Needs progressed to working with the first team at the Liberty Stadium under Garry Monk, before making the move north to link up once again at Leeds last summer.