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Interim Management & Leadership Coaching · Executive Level · Available Immediately
When processes collapse
and results are missing —
we take responsibility.
Interim Management + Leadership Coaching
Available on short notice

Vacant leadership position. Collapsing site. Transformation without results. I take responsibility — when others hesitate.

20+ years · up to 1,400 employees · 8 sites · €150M budget responsibility

0 Years of Experience
0 Ø turnover reduced
0 efficiency increased
✓ Response within 24h ✓ Discreet & no obligation ✓ Direct feedback on your situation
Karim-Oliver Darvich & Dennis Diekmeier
Karim-Oliver Darvich Managing Director · Consultant DeKaO Consult GmbH
Dennis Diekmeier Former Bundesliga Professional · Leadership Coach DeKaO Consult GmbH
Unique in the market

The Full Package

Operational restructuring and leadership coaching from a single source — this model barely exists in the market. We deliver both.

Pillar 1

Interim Management

When processes collapse and results are missing — I take responsibility. Immediately. At executive level.

  • Operational Stabilization & Restructuring
  • Logistics, Supply Chain, Operations
  • P&L Responsibility, Multi-Site Leadership
  • Results from day 1
Karim-Oliver Darvich Managing Director · 20+ years of executive experience
+
Pillar 2

Leadership Coaching

With former Bundesliga professional Dennis Diekmeier — 200+ matches for HSV, Werder Bremen, 1. FC Nürnberg, and SV Sandhausen.

Executives who deliver even under maximum pressure — with the mindset of a professional athlete.

  • Winning Mindset & Resilience Under Pressure
  • Teams that hold together under pressure
  • Decisiveness when it counts
  • 15+ years of pro sports as methodology
Dennis Diekmeier Former Bundesliga Professional (HSV · Werder · Nürnberg) · Leadership Coach
Karim-Oliver Darvich & Dennis Diekmeier – DeKaO Consult
The result: Organizations that don't just function — but perform at their peak. Operationally stable. Mentally strong. Sustainably.
Discover the Full Package

The duo behind DeKaO Consult

Two experts. One goal.

Karim-Oliver Darvich – Managing Director 💼 Executive Level
Karim-Oliver Darvich

Managing Director · Consultant · DeKaO Consult GmbH

Taking Responsibility
when it matters.

Over 20 years of executive leadership at CSO, COO, and Managing Director level — in logistics, supply chain, automotive, pharma, and industry. Karim-Oliver Darvich takes over vacant leadership positions, stabilizes collapsed structures, and delivers measurable results from day one.

Not a consultant — a leader who takes responsibility when others hesitate.

💼 Leadership — immediately

Vacant position. I take over from day 1 — no onboarding, no friction.

🔗 Supply Chains

Logistics under pressure. I bring back the structure — national, international, multi-site.

⚡ Transformation

Processes that eat up costs — I restructure and increase efficiency by up to 20%.

🚀 Scaling

New markets, new sites — I build structures that make growth possible.

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Dennis Diekmeier – Leadership Coach ⚽ Former Bundesliga Professional
Dennis Diekmeier

Former Bundesliga Professional · 200+ Matches · HSV · Werder · Nürnberg · Sandhausen

High performance begins
in the mind.

As a former Bundesliga professional (Hamburger SV, Werder Bremen, 1. FC Nürnberg, SV Sandhausen), Dennis Diekmeier knows the pressure of top-level competitive sport firsthand. Today he passes this knowledge on to executives as a leadership coach — combining the mindset of a high-performance athlete with the demands of modern corporate leadership.

Combined with DeKaO Consult’s interim management, this creates a unique package: operational excellence and leadership coaching from a single source — for organizations that don’t just want to function, but to perform at their peak.

Winning Mindset Resilience Under Pressure Team Building Resilience Decisiveness
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Proven Impact

Results that matter

Metrics from various leadership positions — in the automotive industry, at automotive suppliers, in mechanical engineering, industrial companies, and logistics providers. Demonstrable results from over 20 years in executive-level leadership roles — across industries, in different companies, under real conditions.

–34% turnover reduced
+22% Efficiency Increase
200+ employees built up
–15% costs permanently reduced
150M € Budget Responsibility
7 months to full operation
Who We Are

About Us

Karim-Oliver Darvich

Managing Director · Consultant

Karim-Oliver Darvich

Executive with over 20 years of experience leading complex organizations in logistics, supply chain, and operations.

I take responsibility when others hesitate — and deliver measurable results when it matters.

Leadership Operations Transformation Performance
Dennis Diekmeier – Leadership Coach

Leadership Coach

Dennis Diekmeier

Former Bundesliga professional (HSV, Werder Bremen, 1. FC Nürnberg, SV Sandhausen), former assistant and interim coach at SV Sandhausen. 200+ Bundesliga matches.

From a player who had to perform under maximum pressure — to a coach who teaches executives exactly that.

Winning Mindset Team Leadership Resilience 200+ matches
+20 Years of Experience

in operations, supply chain, and corporate leadership

200+ Bundesliga matches

Elite sports mindset for executives

Unique in the market

Operational leadership + leadership coaching from a single source

Testimonials

Recommendations

Mr. Darvich used his excellent technical expertise to build up a strong logistics organization within a short time. Shaped by a systematic approach and sustainable way of working, he is a reliable colleague.

Thomas Rohr
Senior Director Global Procurement · Purem by Eberspächer

Karim-Oliver is a strategically minded manager who plans measures with clear intent and consistently sees their implementation through. He has a strong personality and is team-oriented – at the same time hands-on and detail-oriented. His international experience has continuously developed his capabilities.

Kay Schmidt
Senior Vice President, Head of Product Line · Axle Drives and eMobility components
All recommendations on LinkedIn
Reach

Network

Networks aren't built on LinkedIn. They're built by getting through crises together.

For critical engagements, I draw on a proven network of experienced executives and specialists — people I have already worked with successfully under pressure. The right person at the right time determines whether an engagement succeeds or fails.

Speed

Filling critical roles in the shortest possible time — no search, no risk.

Reliability

Access to proven experts instead of untested resources — known quality, ready to deploy immediately.

Scaling

Even complex engagements can be scaled flexibly — without losing quality or momentum.

For my clients, that means speed, reliability, and execution — not searching, coordinating, and risk.

Frequently Asked Questions

FAQ

I'm currently available on short notice. Depending on the mandate size and lead time required, a start can be arranged within a few weeks. Reach out directly – we'll find a solution.
Fees depend on the scope, duration, and complexity of the mandate. Both day rates and – depending on the project structure – fixed-price arrangements are possible. All details are clarified transparently in conversation. Contact us for a no-obligation initial consultation.
The engagement runs through DeKaO Consult GmbH on the basis of a service or project agreement. This provides a clear client-contractor structure, minimizes risk for both sides, and offers maximum flexibility.
No. There is no minimum term. Mandate scope and duration are agreed individually – anything from short-term project mandates to multi-year transformation projects is possible.
There's no industry restriction. Core expertise lies in logistics, supply chain, contract logistics, pharma, healthcare, automotive, and industry – but the methodology and leadership know-how applies across industries.
Fully willing to travel – nationwide and internationally. Past engagements have taken place in Germany as well as Switzerland, France, Spain, and the United Kingdom.
Yes – and that's exactly our unique selling point. Together with an experienced leadership coach, we offer operational restructuring and targeted leadership development from a single source. Ideal for organizations that don't just want to function, but to perform at their peak.
Let's Work Together

Initial Consultation Consultation

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Direct Contact

Looking for short-term executive support or want to discuss a specific mandate? I look forward to hearing from you.

Email: [email protected]

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DeKaO Consult GmbH
Kriegstr. 31
68794 Oberhausen-Rheinhausen, Germany

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