Extra Crunch roundup: Finding GTM, China’s edtech clampdown and how to define growth Posted inartificial intelligencecar insuranceCaryn MarooneyChinae-commerceEC roundupentrepreneurshipExtra Crunch Rounduplatin americaMike DuboeStartupssusan suTCTractableTransportationVenture Capital Posted byWalter Thompson 07/24/2021 “The not-so-secret secret here is that the key to great retention is really simple,” says growth expert Susan Su.