The Mike Koplove move makes even more sense now. Roy Corcoran passed through waivers, but refused an assignment to AAA. So, he is now a free agent, and no longer a Seattle Mariner. I doubt it is a coincidence that the Koplove move happened the same day Corcoran officially refused the assignment. Koplove is certainly a comparable replacement. Considering no team claimed Corcoran, it's doubtful he will land a place in an MLB bullpen real soon.