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Continue LogoutCovid-19 proved the power of scale in health care—a key ambition behind many mergers and acquisitions (M&A). But there are far more M&A failures than successes, and many fall apart quickly. So what makes the difference? The new Somerset NHS Foundation Trust (Somerset FT) provides an instructive case on four key elements to mitigate the risk of failure. They are: trust amongst the new executive team, staff buy-in, integrated cultures, and sufficient resources for driving the merger to completion.
Somerset FT is the product of a merger between a mental health and community care provider (Somerset Partnership NHS FT) and an acute hospital (Taunton and Somerset NHS FT) that serves a population of 550,000 in Somerset, England. After forming an alliance in May 2017, the two providers began a 2.5-year integration process culminating in a legal merger in April 2020.
While leaders of all organisations undergoing M&A try to be exhaustive, they rarely anticipate all the bumps in the road. In contrast, Somerset FT’s joint leadership deeply invested in pre-merger prep work across executive, workforce, and clinical areas. This resulted in proactive identification and mitigation of merger risks by getting staff bought in, harmonising the two cultures, and devoting sufficient resources to iron out all the merger risks.
Somerset FT’s integration team mitigated common M&A risks through intentional pre-merger efforts and executed the official merger with little disruption to the newly formed, 7,900-person organisation. As a result of the merger, Somerset FT has seen significant service improvements, smoother care pathways, increased efficiency, and more collaboration.
Like most significant M&A activity, the Somerset FT merger had plenty at stake. The nascent organisation faced potential mistrust between members of the new leadership team, lack of buy-in from staff, lack of harmonisation of organisational cultures, and lack of resources required to achieve the desired outcomes.
Though these are common M&A risks, they were exacerbated by Somerset FT’s ambition to improve care for the people of Somerset through means of vertical integration to enable joined-up clinical pathways and closely link mental and physical care. This is an ambition England’s National Health Service (NHS) shares in its integrated care system strategy set forth in the long-term plan for national care published in 2019.
Following best practice, Somerset FT’s integration team based its merger on an intentional risk management strategy to increase the likelihood of success. This allowed the organisations to successfully integrate physical, mental, and community services for the first time in mainland England.
To neutralise risks, leaders of Somerset FT’s two legacy organisations ensured that the executive team was aligned by allowing time for relationship building. They then built a compelling case for change and created a blended culture to enfranchise key stakeholders. Along the way, they didn’t underestimate the resources the merger would require.
While time will tell how well the merger’s clinical and financial outcomes are achieved, the merger has already improved physical and mental health services for the Somerset population. The new organisation has also seen significant cost reductions, a decrease in delayed transfers of care, and an increase in follow-up appointments. All organisations undergoing M&A activity should consider implementing these four key initiatives to mitigate merger risks.
One of the hardest parts of merging two organisations is blending multiple leaders into a single team without duplication or competition. When executive-level team members compete for influence or mistrust each other, feelings of territoriality emerge and subject crucial decisions to poor judgment. It is therefore essential for the members of the leadership team to hold each other accountable for operating with a joint mindset, including overcoming political whiplash from attrition and new appointments.
The boards of the two legacy organisations recognised the importance of having a single, cross-organisational executive team to lead their collaboration and established that team two and a half years ahead of the legal merger. The team laid crucial groundwork by communicating the strategic direction and supporting staff to explore the benefits of working across organisational boundaries for patients. The leadership team followed three tenets:
Merging organisations that fail to identify and communicate an energising purpose often fall back on transactional details and find that employees drag their feet through change adoption. While leadership is accountable to the vision and outcomes of the merger, buy-in happens at the grassroots level. Lack of staff buy-in born from scepticism and confusion can lead to failed implementation of integration steps and alienate valuable talent, risking an uptick in attrition.
The joint integration team communicated a mission-driven purpose that resonated with staff committed to improving patient outcomes. Thus, communication focused on the merger’s clinical benefits rather than the transaction itself, and clinical integration happened gradually over time so that when the merger became official, it was just another day for staff.1 Leadership relied on three tactics to persuade staff:

Culture must be a central part of any merger strategy because it is closely tied to employee satisfaction, retention, and recruitment. In fact, a survey found that 28 percent of all jobseekers who left a job within the first 90 days listed company culture as the main reason.
A merger is already disruptive to the workforce because of changes in roles, geographic sites, and identity, so when merging organisations fail to incite passion for and bring comfort to changes through a positive culture transition, it’s tough to avoid the sentiment among employees of ‘we didn’t choose to be here.’
To avoid mass attrition and begin recruiting under a new culture and identity, the joint executive team didn’t leave its culture transition to chance. It put ample emphasis on a strategy facilitated by both a cultural audit and an HR transformation. The strategy blended some old cultural elements with new ones, highlighted the importance of staff engagement, and appealed to staff’s passion for improving patient outcomes. This approach promoted widespread buy-in over time so that the merger date didn’t feel insurmountable. Three tactics helped Somerset FT build a new culture and bring it to life:
Description: The Compass Programme was designed to support leaders across clinical, administrative, and support services explore leadership within the context of the alliance’s values. By setting the leadership agenda and embedding new values, Compass forms a critical component of setting organisational culture for the next ten years.
Contents:Four modules delivered one at a time
Metrics for success
Results: 89.2 percent of participants, who were invited by pay band, left Module 1 with definite actions or ideas for action, and the module was attended by a diverse assortment of roles and professionals. Compass Programme organisers noted the importance of focusing programme material on leading through a changing organisational and health care landscape rather than selling the idea of the merger.

Merging organisations must support their integration efforts with sufficient resources such as time, workforce, capital, and will power. Lack of resource commitment and follow-through sabotage the desired outcomes of the merger by putting care quality, financial benefits, and the merged workforce at risk. Adversely, true and realistic commitment to the merger ensures that desired outcomes are enabled by, and not held hostage to, time and resources.
When Somerset FT’s integration plan was put into practice, it required some adjustments. However, based on need, the leadership team dedicated the ongoing necessary input, particularly time, to meet initial expectations. More critically, those accountable for the merger’s success were fully committed to the process from start to finish. Recognising that the job would be extensive and symbolic in nature, the team took these four steps:
Several indicators demonstrate that Somerset FT’s leadership team was able to mitigate common M&A risks:
Somerset FT demonstrates that having a successful M&A process grounded in a thoughtful risk management strategy improves the likelihood of achieving desired outcomes. While it has only been six months since the official merger, the onset of the Covid-19 pandemic has served as a stress test for the merger.
In the face of increased demand caused by Covid-19, the merger has enabled Somerset FT to flex and scale resources much more rapidly than the legacy organisations would have been able to otherwise.
There are additional signs that the merger is already a success:
What is more, the Somerset FT merger has ambitious targets to meet across the next few years, including:
To see supporting artefacts and full footnotes, download the PDF of the case study.
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