At A Glance
How We Actually Built It was the first panel at The Future Is Fractional 2026, hosted by Scrubbed on September 24, 2026. Moderated by Scrubbed CFO Aira Pineda, the conversation featured Thar Casey, CEO of AmberSemi; Eric Valle, Director of Partnerships at Aduro Advisors; and Marcus Guerro, President of Guerro Enterprises. The panel explored what it really takes to build and redesign a finance function, from recognizing warning signs and avoiding quick fixes to understanding the cost of an unready back office, matching finance expertise to company stage, choosing the right partner, and navigating the first 90 days. The key takeaway: build for readiness early, choose partners based on fit and relationship, not just price, and use the first 90 days to prove the partnership works.
Every growing company reaches a point where its finance function stops keeping up. Reports take longer. Complex accounting questions land on people who’ve never handled them. An audit or a fundraiser exposes gaps nobody had time to fix.
At The Future Is Fractional 2026, a virtual conference hosted by finance and accounting advisory firm Scrubbed on September 24, 2026, Scrubbed CFO Aira Pineda asked three leaders who have lived through that moment to walk through it honestly: the before, the decision, the messy first 90 days, and what they’d tell their past selves.
Key Takeaways:
- The warning signs are structure, timing and complexity. The books weren’t set up for the company path, investor reports take too long, or issues like revenue recognition and equity accounting land on a team that isn’t equipped for them.
- Rushed hiring often backfires. Job postings flood lean teams with resumes, and transactional staffing firms optimize for speed and cost rather than fit.
- An unready finance function costs more than it saves. Marcus Guerro linked unprepared books to audit delays, higher fees and lower valuations.
- Match expertise to stage. A bookkeeper and in-house accountant come first; a fractional CFO typically arrives with fundraising.
- Vet partners through your network. Look for relationship-based firms with trained employees behind them, not the cheapest or fastest option.
- Treat the first 90 days as a test. CEO-CFO alignment and tight control over who can access company systems matter as much as technical skill.
What is a finance function redesign? Finance function redesign means changing how finance work is structured and resourced when the current setup stops keeping up with the business. That includes which roles are in-house, which come from fractional or outsourced partners, and which systems and controls support them.
What is a fractional CFO? A fractional CFO is an experienced finance leader who works with a company part time or for a defined period, instead of as a full-time hire.
Meet The Panel
- Aira Pineda (moderator): Chief Financial Officer, Scrubbed.
- Thar Casey: CEO, AmberSemi a semiconductor company working on power delivery for AI data centers. A serial entrepreneur companies from concept through acquisition.
- Eric Valle: Director of Partnerships, Aduro Advisors, with 25 years across the Silicon Valley venture ecosystem, early-stage funds, fund of funds and asset management.
- Marcus Guerro: President, Guerro Enterprises, and a former PwC CPA with more than 30 years of experience placing interim and permanent professionals across finance, technology and operations.
Signs your finance function has outgrown its structure
The panel described the warning signs from different angles:
- The structure doesn’t match the plan. Casey said leaders should decide at founding what they’re building: a small business, an S corporation or a C corporation that will take outside money and eventually go public or sell. Each path puts different demands on the books, the records and the cap table. “It’s really the mindset that you have to start with right from day one to make sure that you are clean.”
- Deliverables take too long. For Valle, who has helped build funds and firms,, the signal is how long it takes to get quarterly and annual reports to investors. Much of the drag sits in data aggregation and template building.
- Complex issues outrun the team. Guerro pointed to revenue recognition and equity accounting as the moments a lean team finds itself out of its depth.
Why Quick Hiring Fixes Often Fall Short
Guerro described a familiar sequence. Finance isn’t the exciting part of a young business, so work gets spread across an already lean team. When complex topics arrive, the company posts a job. That brings hundreds of resumes, no internal recruiter to screen them, and a hiring manager with no time.With work piling up, the company turns to a large staffing firm to get someone in fast. The trouble, Guerro said, is that many of those firms are transactional. The business development reps are focused on filling the seat, not a long-term fit. He urged leaders to look for relationship-based partners that can bring the right people at the right price points and grow with the company.
The Cost of an Unready Finance Function: Audits and Valuation
The most expensive consequence, Guerro said, often shows up at the first audit. Early-stage companies keep audit costs down by scheduling work outside auditors' busy season. If the books aren’t ready, the audit slips into the busy season, and fees go up. If a funding round or exit is on the line, messy books can lower the company’s valuation.His question to executives: are you saving a few thousand dollars a year by not having the right people, only to lose millions in valuation?
Fractional CFO or In-House? Matching Expertise to Company Stage
Casey was direct about what early companies can’t do. “You can’t hire a top-notch… CFO when you’re very early. You can’t afford it, simple as that.” A senior CFO will get bored and leave, unless you give up enough equity to keep them, diluting your own stake.. “Finance and accounting is an overhead,” he added. It carries fiduciary obligations, but the level of investment should match the company's stageHis typical progression:
| Stage, as Casey described it | Finance Support | Why |
|---|---|---|
| Founding | Decide the corporate structure; keep books, records and cap table clean | Be ready for whatever path the company takes |
| Early Operations | A bookkeeper, then an in-house accountant | Day-to-day records |
| Raising Money | A part-time or fractional CFO | Get the books, GAAP compliance and cap table in order |
| Series B or C | Possibly audited financials, leaning on the fractional CFO's expertise | Investor and audit requirements |
| Revenue, An Acquisition, or a Double-digit million raise | An in-house and/or fractional CFO | “The investors are going to demand it” |
With work piling up, the company turns to a large staffing firm to get someone in fast. The trouble, Guerro said, is that many of those firms are transactional. The business development reps are focused on filling the seat, not a long-term fit. He urged leaders to look for relationship-based partners that can bring the right people at the right price points and grow with the company.
How to Vet an Outsourced Finance Partner
Valle's checklist:- Start with your network. Ask people who have built companies like yours what they used.
- Favor known, reputable vendors in your industry.
- Don’t default to the cheapest option. If the budget is tight, start with a smaller scope from a strong provider and expand the service as you grow.
- Hire “who you want tomorrow, today.” Build relationships now with partners you’ll need later.
| Question | Why It Matters, per Guerro |
|---|---|
| Onshore or offshore? | Onshore professionals often want 40-hour roles. An early-stage company may need 10 or 20 hours a week, which offshore and hybrid arrangements can provide. |
| Employees or contractors? | A firm whose consultants are trained employees with managers behind them offers support and escalation that an individual contractor working alone can’t. He cited Scrubbed as an example of that model. |
The First 90 days: CEO-CFO Alignment and Systems Access
- Alignment. For Casey, the biggest surprise in a transition is misalignment between the CEO and the new finance leader. He compared the relationship to a marriage, or to volleyball players: “one sets, the other one spikes.” He isn’t looking for a “yes sir” CFO, but for someone aligned with the company’s vision and culture. Treat the first 90 days as a trial period, and if needed, extend it to 180 days before putting the CFO in front of investors.
- Systems access. When a new finance lead takes over, Valle said, check who has access. In small companies, the finance lead is often the IT lead too, and early teams make everyone an administrator. Years later, former staff can still have access to company data. Review permissions at least annually, choose IT partners who serve firms like yours, and use fractional resources for market intelligence on security practices. And “make sure you have a very good cyber policy in place.”
One Piece of Advice from Each Panelist
- Guerro: relationships. Partner with a firm you can grow and scale with, not a transactional one. Rushed, cost-only decisions often come back as a call weeks later saying the hire didn’t work out.
- Casey: readiness. While raising money this year, he received three inbound M&A inquiries and knew the company wasn’t clean enough to respond. “Be ready, always be ready.”
- Valle: fit over speed. He once hired too quickly to fill a seat and look established, without realizing temp-to-perm was an option. The fit wasn’t there, and it cost time and money.
“You don’t have to build the whole engine yourselves, you just have to know it well enough to know when something’s off, and who to call when it is.”
This session is part of TFIF 2026. To see how finance redesign connects to AI, talent and team structure, read Own the Core, Access the Rest: What The Future is Fractional (TFIF) 2026 Revealed About How Finance Teams Are Being Rebuilt what finance leaders are rethinking about talent, AI and team structure, including eight diagnostic questions for your own team.





