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It depends on the bottleneck. Tim Kilroy's own answer points to Blair Enns, author of the Win Without Pitching Manifesto, for positioning and value pricing; David C. Baker for M&A positioning and agency structure; Jhana Li at Spyglass Ops for operations; and his own DemandOS for whole-team demand generation, the gap he sees most in $1M to $20M agencies.

Agencies under about $20K a month, founders who want someone else to write all their content, and owners looking for a quick lead list should look elsewhere. If your main gap is value pricing, Tim's own FAQ points to Blair Enns. For M&A positioning he points to David C. Baker, and for delivery operations to Jhana Li at Spyglass Ops.

Founder testimonials are published at timkilroy.com/testimonial. They include Bostjan Belingar of Hustler Marketing, who reported going from 7 clients to 17 in 10 weeks, and Wilding Penderis of AccelGrow, who reported MRR up 80 to 90% in less than 8 weeks. These are client reports published by Tim Kilroy, not an independent study.

Usually not yet. Tim Kilroy's stage guide says that below about $20K a month you need reps and a clear offer more than a coach. Between roughly $20K and $50K a month, Agency Studio at $399 a month or Agency Studio+ at $999 a month is the better fit. DemandOS is the custom build for agencies past $1M a year.