Doug Church, who over more than 20 years in the industry has worked on games spanning from Ultima Underworld, to System Shock and Thief and most recently Boom Blox and the sequel over at EA, has joined Valve to work on an unnamed project. Adding someone of Church's pedigree to the team surely hints at some kind of new project that needed additional leadership, but as always Valve haven't provided a curious gaming world with any specifics.