By: Elena Mart
For a long time, businesses didn’t have much choice but to adapt themselves to their software, reshaping how they worked around whatever a vendor decided a process should look like. Jarome McKenzie, founder and CEO of Arrowhead Strategy Group, has spent the last several months on the other side of that arrangement. His firm builds its own financial infrastructure rather than licensing someone else’s. The more interesting question isn’t how Arrowhead does that. It’s what it changes for the founders who hire him.
The Numbers Arrive Different
Many businesses experience their financial picture the way a patient experiences a lab result. It arrives after the fact, already a few weeks old, describing a version of the business that no longer quite exists. That lag is baked into off-the-shelf accounting software, which is built to categorize transactions in batches and reconcile books on a monthly cycle. It’s not a flaw in any individual tool. It’s simply what “industry standard” has always meant.
When Jarome builds his own systems instead of accepting that standard, the practical effect is that his clients see their numbers closer to real time, because a founder making a decision on stale data is, functionally, making it blind. A financial picture that’s three weeks old isn’t wrong, exactly. It’s just no longer the business the founder is actually running today. Closing that gap is the entire reason Jarome’s infrastructure exists.
“A founder can’t act on a number that describes a business that doesn’t exist anymore,” McKenzie has said. “That’s not a technology problem. That’s just math.”
It Changes What the Advisor Is Actually Responsible For
There’s a second, less obvious implication. When a firm buys its financial software from a vendor, there’s a built-in excuse available any time something goes wrong: the tool didn’t support it, the platform has limitations, that’s just how the system works. Jarome’s approach removes that excuse. If Arrowhead’s own infrastructure produces a number that doesn’t hold up, there’s no vendor to point to. It’s his team’s build, his team’s responsibility, end to end.
That ownership shows up in how directly Jarome talks about where his own systems still fall short. He’s been candid that the categorization engine his firm built still gets things wrong on a meaningful share of transactions and can’t yet apply judgment it hasn’t seen before. Most firms wouldn’t publicize that about a system they’re paying to develop. Jarome treats it as the natural consequence of owning the tool rather than renting it. A firm that builds its own systems doesn’t get to blame them either.
“If it’s my tool and it’s wrong, that’s on me,” he’s said. “I’d rather tell a client that upfront than let a vendor’s name do the explaining for me.”
A Different Definition of What “Advice” Includes
Perhaps the largest implication is the quietest one. Arrowhead’s proprietary systems include what the firm calls a True Business P&L, a report designed to show a founder what the business actually earned, stripped of the noise a standard, compliance-oriented statement carries by default. That’s not a feature most accounting platforms offer, because most accounting platforms are built to satisfy a filing requirement, not to answer a founder’s real question. By building that report himself, McKenzie effectively redefined what his firm’s advice includes: not just “here are your compliant numbers,” but “here’s what’s actually true, and here’s what it means for the decision in front of you.”
That’s the real distinction between a firm that buys the industry’s defaults and one that builds around them. It’s not a matter of who has better technology. It’s a matter of who gets to define what the client is owed. A filing, or the truth.
To learn more about Jarome McKenzie’s approach to strategic finance for founder-led businesses, visit the Arrowhead Strategy Group website. Founders can also hear more of his thinking on his podcast, No Trade Secrets.
