The photos on the walls in PSNH’s Pittsfield Training Center cafeteria are so numerous and colorful, you barely notice that there are tables and chairs, too. It’s a “wall of fame” of PSNH line crews over the years, and Glenn Couture, supervisor of Training and Methods (pictured), is proud of the fact that, though off the beaten track, the road to field worker excellence at PSNH since 2006 has gone through this small community northeast of Concord.