Diamond Solutions Group LLC

Lead Change With
Clarity

Deliver the results you need without wearing out the people who make them happen.

Ready to turn "What if?" into "Way to go!"™

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Sarena Diamond smiling in a red jacket

Services

Core Services

Leading a team through change is one of the most demanding jobs in business. These are the three ways we help you do it with clarity, not chaos.

A presenter in a red sweater with arms outstretched on stage in front of a large screen showing Quote to Cash training content

Organizational Change Management

Change succeeds when people believe in it, adopt new processes or technology, and sustain those new ways of working. We assess readiness, map stakeholder impact, and design the communications, training, and reinforcement plans that carry a transformation from launch to lasting habit. The result: stronger adoption, less resistance, and measurable impact on the metrics that matter to your business.

Best for: leaders navigating a merger, reorg, system rollout, or any initiative where people need to move together.

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A facilitator in a royal blue blazer presents a Behavior Mapping for Productivity debrief to attendees seated at a conference table

Facilitation & Training

Great sessions do more than share information. They create alignment. Whether it's strategic planning with your leadership team, a transformation design session with your key leaders, or training delivery to support adoption, we design and facilitate experiences that engage the room, surface the real issues, and end with clear decisions and owners. (And if you just need fresh energy for your daily stand-up, we can help with that too.)

Best for: teams that need a real decision out of a room, not just another meeting.

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A poster on a gold easel reading Compelling Communications for Leaders by Sarena Diamond of Diamond Solutions Group

Leadership & Executive Presence

As hard as we try, what we say and what's heard don't always match. Executive presence starts with communication. We partner with executives and their teams to build the messages that resonate, shape the delivery that makes them stick, and set a communication rhythm leaders can sustain, so presence and credibility carry through every level of change.

Best for: executives and emerging leaders who want a thought partner on the messages and moments that matter most.

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Why Diamond Solutions Group

Change that people adopt

We pair Fortune 100 discipline with a human approach, so transformation lands with the people who have to live it.

  • Proven methods from Fortune 100 and PE-backed transformations
  • Trusted advisors to executives and cross-functional teams
  • Custom programs built around your goals, not a template
  • A partner who stays close until the change sticks.

The Power of And™: bold and kind, strategic and human, accountable and empathetic.

Results

Change you can measure

A few engagements, with client names kept confidential.

Results from Sarena's corporate leadership roles

$780M+

ROI business case for a global Quote-to-Cash transformation

55%

improvement in on-time staffing for a 30,000-person global workforce

240,000

service professionals supported by transformed resource planning

28

remote Agile education programs delivered worldwide

Diamond Solutions Group engagements

Post-Acquisition Transformation

11 months | Entertainment & Media

Challenge
After an acquisition, the organizations, technology, and processes had not come together, and it was hurting operations and customer service.
What we did
Found the capability gaps, moved business units onto one technology platform, built a consistent Quote to Cash process, and delivered 11 multi-day Train-the-Trainer workshops with support afterward.
Outcome
Simpler CRM and CPQ processes connected to the ERP systems, one standard technology platform, higher customer satisfaction, and a significant lift in financial performance.

Change Management and PMO Leadership

6 months | Professional & Business Services | Innovation & Transformation

Challenge
Many initiatives, no shared priorities, no change leadership, and projects running late with unclear status, resources, and business cases.
What we did
Created a central function to prioritize and align initiatives, introduced change management practices and standard tools, and closed skill gaps in the project management team.
Outcome
Better prioritization and alignment, a portfolio model that raised confidence in the PMO, and stronger engagement across teams and stakeholders.

Communications, Culture, and Employee Alignment

10 months | Private Equity Property Development

Challenge
Engagement was slipping, teams felt disconnected, and communication from leadership was inconsistent enough to overwhelm the leaders sending it.
What we did
Built a Communications Plan and Calendar for leadership, set cascading communication standards, tied culture and core values to company goals, and enabled all leaders to deliver on clear actions.
Outcome
Leaders communicated better across teams, employee engagement grew, and feedback from internal and external stakeholders turned more positive.

Preparing for a Divestiture

6 months | Large Enterprise, Professional Services

Challenge
While a service line was being readied for a confidential sale, disconnected initiatives had no clear priorities or leadership, and uncertainty was wearing down trust.
What we did
Designed a new operating model built for agility and empowerment, created a central function to prioritize initiatives, introduced change management practices and tools, and launched leadership and talent programs to prepare for the transition.
Outcome
Initiatives lined up with business goals and culture, and leaders and employees stayed engaged and confident through the uncertainty.

Trusted by leaders at

Pfizer
PRG
NCM Associates
Wellpath
Beacon Communities
Broadridge

Testimonials

What clients say

“Sarena takes challenges head-on. Her drive is unlike any other leader I have worked with in the past. Her communication skills and leadership style adapt to those around her, which makes her a very receptive leader. Clients trust Sarena because of the emphasis she puts on building personal relationships each and every day.”
G.H. | Fortune 100 Tech Company
“Sarena is a visionary. Under her lead, we turned a small but mighty idea into an interactive, 24-hour event, engaging and educating thousands of clients along the way.”
S.G. | Professional Services Company
“Sarena has an energetic leadership style that gets the team excited about not just the outcomes, but the journey as well... and she has an innate ability to make complex change accessible to all stakeholders.”
P.M. | Iconic Beauty Company
“Sarena's collaborative working style created a positive environment that empowered and inspired my team to go above and beyond... she kept my teams and clients engaged by infusing fun into our work.”
P.J. | Consumer Subscription Company
“Sarena is both skilled and engaging as a facilitator, so people want to work with her!”
D.M. | Private Financial Company
“Sarena is a catalyst for new ideas where creativity can lead the way. The way she combined the future state vision with compassion brought all our people along on the journey with her.”
D.H. | Fortune 100 Tech Company
Sarena Diamond, CEO and Founder of Diamond Solutions Group

About Sarena

CEO & Founder

Sarena Diamond has spent decades showing that a company can transform itself without losing the people who make it work. Her corporate background spans IBM, Accenture, Pepsi-Cola, Hyperion, and Mellon Investor Services, and today she partners with leaders of Fortune 100 enterprises, PE-backed ventures and privately held companies on organizational change, facilitation, and communications.

Her approach is The Power of And™: bold and kind, strategic and human, accountable and empathetic. She serves as a strategic partner and builds capability inside the client team, so the change is adopted and sustained long after the engagement ends.

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Front cover of Becoming an Unstoppable Woman: Entrepreneur, Part II, featuring 20 stories uncovering business growth mindsets

To learn more about Sarena's journey, read: Becoming an Unstoppable Woman: Entrepreneur, Part II

Expertise Built At

Accenture
IBM
Pepsi-Cola
Hyperion
Mellon Investor Services
Mercer

Change starts with a conversation

Tell us a bit about your organization and we'll follow up to schedule a consultation.

Sarena personally reads every message and replies within one business day.

Faq

Frequently Asked Questions

Quick answers before we talk.