How the Best CFOs Lead Without Being the CEO | Ken Stillwell

In this episode of Run the Numbers, CJ sits down with Ken Stillwell, CFO and COO of Pegasystems, to explore the realities of leading from the second seat. Ken shares hard-earned lessons from guiding Pega through the shift from term licenses to ARR and ACV, including how to rework sales compensation without losing trust or momentum. They discuss the limits of KPI obsession, the importance of directional clarity over false precision, and why private equity often drives sharper execution than public markets—and how to apply that discipline while still playing the long game.—SPONSORS:Tabs is an AI-native revenue platform that unifies billing, collections, and revenue recognition for companies running usage-based or complex contracts. By bringing together ERP, CRM, and real product usage data into a single system of record, Tabs eliminates manual reconciliations and speeds up close and cash collection. Companies like Cortex, Statsig, and Cursor trust Tabs to scale revenue efficiently. Learn more at https://www.tabs.com/runAbacum is a modern FP&A platform built by former CFOs to replace slow, consultant-heavy planning tools. With self-service integrations and AI-powered workflows for forecasting, variance analysis, and scenario modeling, Abacum helps finance teams scale without becoming software admins. Trusted by teams at Strava, Replit, and JG Wentworth—learn more at https://www.abacum.aiBrex is an intelligent finance platform that combines corporate cards, built-in expense management, and AI agents to eliminate manual finance work. By automating expense reviews and reconciliations, Brex gives CFOs more time for the high-impact work that drives growth. Join 35,000+ companies like Anthropic, Coinbase, and DoorDash at https://www.brex.com/metricsMetronome is real-time billing built for modern software companies. Metronome turns raw usage events into accurate invoices, gives customers bills they actually understand, and keeps finance, product, and engineering perfectly in sync. That’s why category-defining companies like OpenAI and Anthropic trust Metronome to power usage-based pricing and enterprise contracts at scale. Focus on your product — not your billing. Learn more and get started at https://www.metronome.comRightRev is an automated revenue recognition platform built for modern pricing models like usage-based pricing, bundles, and mid-cycle upgrades. RightRev lets companies scale monetization without slowing down close or compliance. For RevRec that keeps growth moving, visit https://www.rightrev.comRillet is an AI-native ERP built for modern finance teams that want to close faster without fighting legacy systems. Designed to support complex revenue recognition, multi-entity operations, and real-time reporting, Rillet helps teams achieve a true zero-day close—with some customers closing in hours, not days. If you’re scaling on an ERP that wasn’t built in the 90s, book a demo at https://www.rillet.com/cj—LINKS:Ken on LinkedIn: https://www.linkedin.com/in/ken-stillwell-83a499a/Pegasystems: https://www.pega.com/CJ on LinkedIn: https://www.linkedin.com/in/cj-gustafson-13140948/Mostly metrics: https://www.mostlymetrics.com—RELATED EPISODES:How Finance Becomes a GTM Partner, Not a Bottleneck | Chris Brubakerhttps://youtu.be/T2YjdoiJtFA—TIMESTAMPS:00:00:00 Preview and Intro00:02:57 Sponsors — Tabs | Abacum | Brex00:07:26 The Strategic Value of Being Number Two00:08:46 Earnings Calls, Messaging, and Real-Time Judgment00:10:41 Using Feedback to Sharpen Executive Communication00:11:38 CFOs as Storytellers & Message Repetition00:12:31 Managing Up: Reading the Room00:13:59 Learning the Hard Way: Misreading Dynamics00:15:18 Confidence, Aggression, and Early CFO Mistakes00:15:58 Sponsors — Metronome | RightRev | Rillet00:19:45 When to Email vs Pick Up the Phone00:22:48 Tailoring Communication to Different Functions00:23:23 Audience-Specific Messaging: “Why Me?”00:25:24 Values vs Behaviors in Leadership00:28:13 Why Big Changes Need Anchoring00:31:14 Moving Pega to the Cloud00:32:43 Rewiring Sales Comp for ARR & ACV00:34:56 Sales Credibility Breakdowns with Customers00:36:20 Economics vs Trust in Sales Teams00:37:48 Balancing Field Feedback with Company Goals00:39:17 De-Emphasizing New Logos to Fix the Sales Model00:41:12 The Danger of Over-Obsessing on KPIs00:42:51 Public vs Private: Incentives and Operating Discipline00:45:57 Why Companies Go Private: Motivation Over Patience00:47:29 The Shrinking Public Markets00:47:57 Private vs Public CFO Mindsets00:49:39 Meeting Investors Where They Are00:50:16 A Risky Decision That Paid Off: Going All-In on the Cloud00:51:29 Long-Ass Lightning Round00:53:24 Ken’s Finance Tech Stack & Craziest Expense00:54:39 Credits#RunTheNumbersPodcast #CFOLeadership #ExecutiveCommunication #SalesStrategy #PublicVsPrivate This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit cjgustafson.substack.com