What's the single most effective strategy for generating qualified B2B leads?

Without question, it's building a full-funnel attribution model so you know exactly which channels produce pipeline, not just clicks or leads. Too many teams optimize for cost-per-lead and end up with high-volume, low-quality leads that sales ignores. I recommend creating lead scoring aligned to buyer intent signals — what content they download, what pages they visit, what triggers they respond to. At my last engagement, I rebuilt the demand gen engine for a compliance software company and increased marketing-sourced pipeline by 210% by focusing on quality over volume and implementing multi-touch attribution.