Northgate
Paid acquisition looked fine on paper — blended CAC was flat for four quarters — but the bank balance kept telling a different story. Nobody in the company could name a profitable segment.
Rebuilt unit economics bottom-up by cohort instead of by channel, then repriced around the two segments that actually retained. Shut down the self-serve tier that was quietly subsidising everyone else.
Payback fell from 19 months to 7 without cutting a dollar of spend. The operating review now opens with cohort payback instead of blended CAC.