Denis Returns: One-Week Sprints, Cisco GTM, and How AI Is Changing Software Development

Didi hosts without Lital and welcomes returning guest Denis Knjazihhin, a cybersecurity veteran who founded D2 to help enterprises roll out AI agents. Denis recounts being born in the Soviet Union (now Estonia), moving through Germany to Boston, and his startup path from BladeLogic to Aveksa (acquired by RSA), where he met DiDi and later partnered with him on Cisco’s internal startup CDO. They discuss how product success at Cisco depends heavily on integrating with Cisco’s go-to-market machine, highlighting an ASA upgrade feature that drove adoption and services. The conversation shifts to software process: their preference for one-week sprints for rapid feedback, and how AI is disrupting agile practices, moving work from code completion to agent-driven design and implementation guided by ADRs, with growing need for higher-level review and summaries. Denis cites a 153k-line agent-assisted PR done largely during vacation, while both caution against letting AI change core, high-risk systems.   Topics 00:52 Denis Returns 02:51 Denis Origin Story 03:55 Pets And Parenting 05:07 Startup Journey Together 07:50 Patents And AI 10:45 Cisco GTM Lessons 12:26 ASA Upgrade Breakthrough 15:24 Startup Strategy Analogies 18:10 One Week Sprint Rule 20:31 Fast Follower Examples 21:36 TiVo to Streaming 22:36 Blockbuster and Piracy 23:20 Netflix Pivot Lessons 24:13 Big Company Pivots 25:00 Apple Burns Ships 26:17 Microsoft Cloud Shift 27:20 Life Sciences vs Security 29:56 Agile Is Outdated 32:02 AI Coding Evolution 33:28 ADRs and Review Load 37:18 Code Rot Reality 40:01 Adopt AI or Fall Behind 43:11 Token Budgets and Local Models 44:12 153K Line PR Story 46:01 AI on the Periphery 47:17 Wrap and Cliffhanger