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(From left) Rackspace former CEO Lanham Napier, Rackspace co-founder Graham Weston, and emcee Vern Harnish speak at the ScaleUp Summit at the San Antonio Marriott Rivercenter.

(From left) Rackspace former CEO Lanham Napier, Rackspace co-founder Graham Weston, and emcee Vern Harnish speak at the ScaleUp Summit at the San Antonio Marriott Rivercenter. Credit: Bonnie Arbittier / San Antonio Report

(From left) Rackspace former CEO Lanham Napier, Rackspace co-founder Graham Weston, and emcee Vern Harnish speak at the ScaleUp Summit at the San Antonio Marriott Rivercenter.