https://strelecki.co/blog/ Case files on customer success, retention, and NRR — churn autopsies, upsell misfires, and the post-sale operating systems that make B2B SaaS revenue compound. By Matt Strelecki. en-us Wed, 15 Jul 2026 12:00:00 +0000 https://strelecki.co/blog/i-already-bought-the-parking/ https://strelecki.co/blog/i-already-bought-the-parking/ Wed, 15 Jul 2026 12:00:00 +0000 A ticketing giant tried to sell Matt Strelecki the parking he'd already bought. A case file on upsell misfires, dirty CS data, and aiming AI before you fire.