PR industry veterans Richard Houghton and Crispin Manners, who have run agencies including Shandwick, Ketchum, FleishmanHillard and Kaizo, are the co-authors of a new book for PR agency leaders: 'Grow, Build, Sell, Live.' They join Maja Pawinska Sims in the Echo Chamber to talk about the new book – a PRCA practice guide – and the biggest mistakes that owner-managers make when building their own firms. The duo also discuss how the relative lack of hard business management experience among agency heads is holding individual firms and the industry back.