Team-building is the fad that never actually went away. Or, more precisely, outdoor, mud-spattered team-building remains an immovable object in the corporate world. When FM asked 50 companies how they turned their workers into cohesive, tight-knit units, they should have known that there would be a deluge of similar responses. From Web design firms to pork pie makers came tales of survival weekends with the Parachute Regiment and assaults on Scafell Pike. Outsourced service provider EDS is one company that's searched high and low for something a little more civilized. Its answer is playing with Lego. In fact, the name of this team-building exercise is Lego Serious Play and it's endorsed by such strait-laced organizations as Deloitte, IBM and even HM Treasury. The object of the exercise is to create visual representations of abstract concepts using Lego bricks. Team members might be asked to construct a 3D image of the company's divisions or the reporting structure.