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EA Strategy in Case of a Merger (M&A)

  • Writer: Anand Nerurkar
    Anand Nerurkar
  • Nov 24, 2025
  • 4 min read

My EA strategy for a merger focuses on four pillars: discover, decide, integrate, and optimize.The goal is business continuity + synergy + tech consolidation.

1. Rapid Discovery & Baseline Assessment (Day 0–30)

The first step is visibility.

a. Current Enterprise Landscape Assessment

  • Application inventory

  • Integration landscape

  • Data flows and critical master data

  • Tech stack, infra, cloud usage

  • Security posture, controls, and vulnerabilities

  • Licensing, contracts, vendor dependencies

b. Business Capability Mapping

  • Map capabilities of both organizations

  • Identify overlaps, gaps, duplications, and unique strengths

  • Identify critical business processes that must not fail (payments, finance, HR, order mgmt.)

c. Risk & Compliance Assessment

  • Regulatory differences

  • Security, privacy, PI/PII rules

  • Audit and SOX controls

  • Data residency constraints

Outcome: A clear “As-Is EA Baseline” of both organizations.

2. Strategic Decision Framework (Synergy Model) (Day 30–60)

Once we know the landscape, EA drives strategic choices.

a. Define Integration Strategy (Choose One)

  • Absorption Model → One company’s architecture becomes the primary

  • Best-of-Breed Consolidation → Keep best systems from each

  • Greenfield / New Target Platform → Build a unified new architecture

  • Hybrid Integration Path → Integrate in phases, sunset gradually

b. Build vs Buy vs Keep vs Sunset Decisions

Based on:

  • Business criticality

  • Cost & TCO

  • Compliance impact

  • Scalability & tech debt

  • Vendor lock-in

  • Integration complexity

c. Decide Target Architecture Principles

  • Cloud-first / multi-cloud / hybrid

  • API-first, event-driven

  • Zero trust security

  • Unified IAM and data architecture

  • Standardization of tools & platforms

Outcome: A “To-Be Target Architecture Blueprint” for the merged entity.

3. Integration Architecture (Day 60–120)

Once decisions are made, focus on how to combine the two ecosystems.

a. MDM & Data Strategy

  • Unified customer identity

  • Unified product catalog

  • Golden source strategy

  • Data migration plan

  • Data quality, cleansing, deduplication

b. Integration Approach

  • API gateway consolidation

  • Kafka/event streaming harmonization

  • IAM consolidation (Azure AD, Okta, or AD domain consolidation)

  • Messaging standards (ISO 20022, REST, event-based)

c. Application Rationalization

  • Duplicate CRMs → choose 1

  • Duplicate ERPs → choose 1 OR phased replacement

  • Legacy systems → modernization or retirement

  • Tactical “bridges” to ensure short-term continuity

Outcome: A "Unified Integration Architecture & Migration Plan".

4. Operational & Governance Framework (First 6 Months)

a. Unified Governance

  • Architecture Review Board (ARB)

  • EA standards & patterns

  • DevOps pipelines standardization

  • Cloud governance, tagging, FinOps

  • Security policies, zero trust, DLP

b. Organizational Alignment

  • Merge architecture teams

  • Redefine RACI

  • Align product owners, business architects, data stewards

  • Define operating model (CoE, federated, hybrid)

c. Change Management

  • Stakeholder communication

  • Training & onboarding to new systems

  • Migration waves & adoption strategy

Outcome: A stable merged environment with controlled operations.


**“In a merger, my EA strategy is built on four pillars:

  1. Rapid discovery, 2) Strategic decisions, 3) Integration architecture, and 4) Governance.I start by assessing both organizations’ landscapes — applications, integrations, data, infra, security, and capabilities. Next, I define the Target Architecture using a structured decision framework: absorption, best-of-breed, greenfield, or hybrid. Then I drive consolidation of MDM, IAM, APIs, event platforms, and critical business systems. Finally, I unify governance, standards, DevOps pipelines, cloud policies, and security models.The objective is business continuity first, then synergy realization, cost optimization, and a scalable unified architecture.”**


“A transformation program is running for 6 months. Business says it is not delivering the value they expected. What will you do?”

This is a classic scenario-based leadership question.Your answer must show strategic thinking, stakeholder alignment, root-cause analysis, governance, and course correction.

Executive-Level Answer

“When business says a 6-month transformation isn’t delivering value, I immediately move into a structured recovery mode — understand, validate, re-align, and re-execute.”

🔶 1. Run a Rapid “Value Diagnostics” Assessment (1–2 weeks)

I do a fast, structured diagnostic to identify where the breakdown is:

a. Business Value Gap

  • Are we building the right things?

  • Is the business value statement unclear, outdated, or misunderstood?

  • Did the business expectations evolve while delivery didn’t?

b. Execution Gap

  • Velocity drops

  • Scope creep

  • Technical debt

  • Integration issues

  • Poor NFR planning (performance/security/compliance)

c. Alignment Gap

  • Business sponsors not engaged

  • PO not strong

  • Architecture not embedded early

  • Teams working in silos

This diagnostic gives a fact-based story of what is going wrong.

🔶 2. Re-align with Business on “Value Definition”

Often business says “no value" because:

  • Value was not measured

  • Value was not communicated

  • Value was not delivered incrementally

  • Value expectations changed

I run a Value Realization Workshop with business, operations, product, and technology:

We redefine:

  • Business outcomes

  • KPI targets (TAT reduction, cost savings, customer experience, revenue impact)

  • What “value delivered” means in the next 90 days

  • What is minimum lovable product (MLP), not just MVP

Now business becomes a co-owner of value.

🔶 3. Re-plan the Program with a 90-Day “Turnaround Plan”

I create a reset plan:

Includes:

  • Fix scope → focus on highest-value use cases

  • Fix architecture → remove blockers, tech debt, dependency failures

  • Fix team capacity → right people in the right pods

  • Fix governance → daily war-room for first 2 weeks

  • Fix decision-making → remove review bottlenecks

  • Release value in 30-30-30 sprint cycles (every 30 days business sees value)

This gives confidence and restores business trust.

🔶 4. Strengthen Architecture & Engineering Practices

Many failing transformations have these issues:

  • Unclear architecture runway

  • No NFRs

  • Too many POCs, no production readiness

  • Manual testing, no automation

  • Too many integrations blocked

I fix this by:

  • Creating a clear Target Architecture Blueprint

  • Clarifying domain boundaries & APIs

  • Improving DevOps (CI/CD, quality gates)

  • Enforcing NFR standards

  • Removing any over-engineering / gold plating

This stabilizes execution and quality.

🔶 5. Improve Transparency & Communication

Business usually says “no value” when they cannot see the value.

I introduce:

  • Weekly Value Dashboard

  • KPI tracking

  • Release burndown

  • Risk radar

  • Status in business language, not technology language

Now business clearly sees progress and value.

🔶 6. Deliver Something Tangible in 30–45 Days

This is critical.

Even a single business-facing release:

  • Loan approval workflow

  • Vendor onboarding

  • Real-time dashboards

  • A working Microjourney

  • A customer experience feature

This builds trust and momentum.


“If business says a 6-month transformation is not delivering value, I run a rapid diagnostic to identify the value, execution, or alignment gaps. Then I re-align with business through a Value Realization Workshop and reset the roadmap with a 90-day turnaround plan focused on high-value outcomes. I strengthen architecture, remove technical blockers, and enforce DevOps/automation to improve delivery quality. Finally, I establish transparent KPIs and deliver a tangible business-facing release within 30–45 days. The goal is to restore confidence, deliver measurable value, and get the program back on track.”



 
 
 

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