Figure 1. Barclays is replacing the 2024 four-person co-head model with two co-CEOs from February 2027, subject to regulatory approval for Mike Joo.
The change reduces four top-level co-head roles to two: one for banking and one for global markets.
A leadership redesign less than three years after the last one
Barclays is changing the leadership structure of its investment bank, replacing the four-person co-head model introduced in 2024 with two co-chief executives. The bank has hired former Bank of America executive Mike Joo to lead investment banking, while Adeel Khan will take responsibility for global markets. Joo is expected to join in February 2027, subject to regulatory approval. The change is significant because it reverses a relatively recent management design. Financial Times reporting says the previous arrangement had attracted internal criticism that decision-making was too widely dispersed and accountability was unclear when problems occurred. Barclays confirmed the contents of the internal memo announcing the change.
The operational issue is larger than the organisation chart
A management structure determines more than reporting lines. It influences the number of interfaces a decision must cross, the clarity of ownership, the speed of escalation and the ability to connect outcomes to accountable leaders. A four-person leadership model can work when domains and decision rights are explicit. It can also create additional coordination work when responsibilities overlap or when important decisions require repeated alignment. The move to two leaders does not automatically resolve those issues, but it reduces the number of top-level interfaces and creates a clearer division between banking and markets. From a process-improvement perspective, that is a form of simplification.
The redesign is happening against a demanding performance backdrop
Barclays remains a major global investment bank, but it continues to compete with larger US rivals for the most valuable fee pools. The Financial Times reported that Barclays ranked sixth globally for investment-banking fees in 2026 through mid-August, with an estimated $2.7 billion generated during that period. Its banking fees and underwriting revenue fell to £2.5 billion in 2025, while equity-capital-markets revenue declined by more than 20 percent. Performance improved in the first half of 2026: advisory fees rose 67 percent to £443 million and equity-capital-markets fees rose 65 percent to £249 million. The leadership change is therefore taking place while parts of the business are improving but the broader strategic challenge remains unresolved.
Figure 2. A simpler structure can reduce coordination interfaces, but it still requires explicit decision rights and execution routines.
Simplification can reduce coordination cost
Process improvement often focuses on visible workflows, yet governance itself is a process. Senior leaders receive information, make trade-offs, allocate resources, approve exceptions and set priorities. Every additional handoff creates a potential delay or ambiguity, especially when responsibility is shared without a final owner. Simplifying a leadership structure can reduce coordination cost if it is accompanied by clear authority. The relevant measure is not whether the new chart looks cleaner. It is whether decisions that previously required negotiation among several leaders now move faster, produce fewer reversals and leave less uncertainty about who is responsible for the outcome.
Clear accountability still needs a management system
Reducing four leaders to two can improve structural clarity, but accountability depends on the mechanisms underneath the titles. Banking and markets remain complex businesses with shared clients, capital constraints, risk requirements and cross-functional dependencies. The two leaders will still need common performance measures, explicit escalation rules and disciplined routines for decisions that cross their domains. Without those mechanisms, complexity can reappear through informal negotiation even when the formal structure is simpler. Operational excellence treats accountability as something designed into the way work moves, not something created by assigning a name to a box on an organisation chart.
The bank has already been trying to change what work it values
The leadership reset also sits inside Barclays’ effort to improve returns from the investment bank. Recent Financial Times reporting describes a push towards fee-based advisory and equity-capital-markets activity and away from some capital-intensive debt business. That strategy changes the criteria used to judge opportunities, which means bankers have to alter established behaviours as well as targets. This is a common transformation problem: a new strategy can be clear at the top while the operating routines beneath it continue to reward the old model. Leadership simplification may help because fewer senior owners can make priorities easier to interpret, but performance will depend on whether resource allocation, incentives and day-to-day decisions consistently reinforce those priorities.
Figure 3. The value of a governance redesign is demonstrated through the process from ownership to measurable results.
The results should be judged through process and performance
The most useful way to assess the change is to follow the chain from governance to operating results. First, ownership should become clearer. Second, decision time and escalation friction should fall. Third, behaviour across the investment bank should align more consistently with the return targets and client strategy. Finally, those changes should appear in measurable outcomes such as fee growth, capital efficiency, client wins and sustainable returns. A leadership restructure that stops at the first step is administrative change. A restructure that improves the full chain becomes operational improvement.
A simpler structure creates an opportunity, not a result
Barclays’ decision is a useful example of a broader operational-excellence principle: complexity at the top can become complexity everywhere else. Simplifying governance can make accountability easier to see and reduce the effort required to coordinate decisions. It does not guarantee better performance, particularly in a competitive and cyclical business such as investment banking. The value of the redesign will depend on whether the simpler structure changes how decisions are made and whether those decisions improve execution. The organisation chart is therefore the starting point. The real test is the process that follows it.
Sources
Primary news: Financial Times, “Barclays shakes up investment bank less than three years since last overhaul”. 17 August 2026. https://www.ft.com/content/35be5ef3-4ea3-444d-b509-2fb00a9940c9
Follow-up analysis: Financial Times, “Will Barclays’ latest Wall Street reset finally work?”. 20 August 2026. https://www.ft.com/content/5ca20d4b-1ec1-4e6d-8994-ba906c7cfd33
Independent confirmation: Reuters, “Barclays names former Bank of America executive Joo as co-CEO of investment bank”. 17 August 2026. https://www.reuters.com/legal/transactional/barclays-names-former-bank-america-executive-joo-co-ceo-investment-bank-2026-08-17/
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