Erik Hammerschlag is returning to his old stomping grounds at Osprey Packs after a nine-year stint away with Mountain Hardwear. The former Osprey chief executive will be coming back on board as product line manager, working with the design team to come up with successful new products. He first joined Osprey as business manager in 1994, moving up to marketing manager in 1996 and then serving as CEO from 1999 to 2001. At Mountain Hardwear he was product manager.