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For the past decade, Leo Cullen has been the steady hand guiding Leinster Rugby through an era of domestic dominance. Since taking the reins in 2015, Cullen has delivered five United Rugby Championship titles and a Champions Cup triumph in 2018. Yet, despite their glittering squad and attacking flair, Leinster have fallen short on Europe’s biggest stage in recent years—losing four consecutive Champions Cup finals and suffering a semi-final defeat to Northampton in 2025.

Often spoken about as a future Ireland Team Manager, Cullen’s stock has fallen in recent years. The aforementioned European defeats, in particular, have been very damaging. Costly refusals by his teams to “take the three points on offer”, whether by penalty or drop goal, stands in stark contrast to the mindset of the top clubs and international sides – the reigning world champions, South Africa, being a prime example of how to consistently win finals by keeping the scoreboard ticking over.

In comparison to Soccer, Rugby union’s revenue is far smaller and only concentrated in a few regions.  Rugby Union relies heavily on Marquee Events, such as the Rugby World Cup, every four years, and British & Irish Lions tours. These events effectively subsidise the rest of the game. Outside these peaks, most unions and clubs operate at a loss. In 2023/24, the top 10 unions posted a combined loss of almost €130 million, and Premiership/Top 14 clubs lost over €90 million. Figures are harder to come by / assess for the Irish provinces, but the IRFU share was recorded as €18.4 million, which led to the discontinuation of the Men’s Sevens programme, earlier this year. 

The precarious financial position of Rugby Union finances is a problem for Cullen in that he is perceived, by many, to have underachieved with the resources at his disposal. This makes landing another head coach role in the professional game that bit more challenging for him. Clubs and unions want to extract every last ounce from their teams and not be too calm and/or comfortable with defeats.

Leo Cullen is locked in until 2027, so there’s no immediate vacancy. Yet with the RDS Arena redevelopment set to be unveiled ahead of the 2026 Dublin Horse Show, could Leinster Rugby view a change at the helm as part of their new era? Or, indeed, could Cullen himself decide to move on to new pastures? 

With speculation mounting, here are some possible names in the frame to take over:

Jacques Nienaber – The Defensive Mastermind

Currently serving as Leinster’s senior coach, Nienaber arrived fresh from guiding South Africa to back-to-back Rugby World Cup titles. His defensive systems have already tightened Leinster’s game, and his contract runs until 2026. If Cullen moves on, Nienaber is the most logical successor—continuity, pedigree, and proven success at the highest level. Springboks will rarely let their teams turn down three points on offer.

Stuart Lancaster – The Architect of Leinster’s Modern Game

Lancaster’s fingerprints are all over Leinster’s attacking identity. During his tenure (2016–2023), he transformed the province into a powerhouse of skill and structure. After a stint at Racing 92, Lancaster returned to Ireland as Connacht head coach. His familiarity with Leinster’s culture and player development makes him a compelling candidate—if timing aligns.

Michael Cheika – The Maverick Option

Always be wary about the return of a head coach – Warren Gatland and Wales comes to mind! Cheika is a name that sparks debate. The Australian coached Leinster to their first Heineken Cup title in 2009 and has since led national teams and World Cup campaigns. His fiery personality and bold approach could inject fresh energy, but would Leinster gamble on a coach known for volatility?

Internal Promotions – McBryde or Bleyendaal

Robin McBryde (forwards coach) and Tyler Bleyendaal (attack coach) have both signed extensions through 2027. Highly respected within the Leinster setup, they offer continuity if the province opts for evolution rather than revolution. However, neither has head coach experience at this level, which poses a risk. Given the scrum’s standout performance against Munster in an otherwise disappointing defeat, McBryde would likely be the preferred internal candidate over Bleyendaal should Leinster choose to promote from within

External Big Names

Leinster’s job is one of the most coveted in world rugby. Expect speculation around:

• Joe Schmidt It is hard to keep up with Schmidt. Since stepping down as Ireland head coach in 2019, he has been the Director of Rugby and High Performance at World Rugby, joined the Blues (Super Rugby) as an assistant coach and became a selector and attack coach for the All Blacks, helping them reach the 2023 Rugby World Cup final (lost narrowly to South Africa). He was then appointed Wallabies head coach in January 2024 on a two-year deal, replacing Eddie Jones, tasked with rebuilding Australia ahead of the 2025 British & Irish Lions tour and preparing for the 2027 Rugby World Cup. He has always stated that he wishes to prioritise family commitments but he does still own a house in Dublin! Again, as with Cheiks, always be wary about the return of a head coach.
• Ronan O’Gara Despite being a fully paid up member of Ireland’s “Sparta”, ROG has family ties to Blackrock (The Dublin one!). Very familiar with Leinster, both as a player and a manager, the mere thought of him taking the job would be too much for many of our southern brethren. Archie Macpherson’s description of the legendary Celtic FC manager, Jock Stein, was that he was “A Protestant chieftain of a Catholic clan”. Sport has seen stranger twists. His arrival would have many players on edge long before the first team meeting.
• Andy Farrell Although his current contract with the IRFU runs until the end of the 2027 Rugby World Cup, Andy Farrell and Leinster could be a perfect match for each other. He has often highlighted his Irish roots and the sense of community he and his family have found since moving to Dublin. Whilst the life of a rugby coach is often nomadic, Farrell may be reluctant to move again – at least for a while. And who knows, Owen, who will be thirty six in 2027, might decide to join his father as a coach at Leinster? That would be box office!
• Eddie Jones The “Davy Fitz” of rugby coaches would certainly get a response! Not going to happen, though. Would be box office times ten!
• Rising stars from Super Rugby or the Top 14 Leinster, as a general rule, have tended to recruit well when looking for head coaches. However, it is unlikely that they will look past established candidates this time around.

The Big Question

Leinster’s next head coach must do more than maintain domestic dominance—they need to conquer Europe. Style of play, cultural fit, and timing will all shape the decision. For now, Leo Cullen remains in charge, but the succession debate is only just beginning…

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