Rackspace (RAX), the OpenStack-centric cloud services provider, is set to announce Q2 earnings on Aug. 8. Forbes expects Rackspace profits to dip amid a cloud price war with Amazon Web Services (AMZN), Microsoft Windows Azure (MSFT) and Google App Engine (GOOG). But the bigger story involves new Rackspace sales and marketing executives who must bolster the company — and restore channel momentum.