Corporate IT departments are losing their grip on applications and services thanks to the "consumerization" of business technology, according to the Yankee Group. In a report, Zen and the Art of Rogue Employee Management, the research firm says nearly 50% of employees feel they have more control over the technologies they use than the IT department does, and that could create support and maintenance problems. But rather than dictate and enforce policies, IT departments should set guidelines and directions, the Yankee Group says. Use Web 2.0 tools to create user applications. Support wikis and social networks to help users manage their own IT applications and services. But also set strict security baselines so the new apps integrate with, but don't negatively impact, the existing infrastructure.