Confusion reigned Monday night, as the Pittsburgh Penguins and Chicago Blackhawks announced that Trevor Daley and Rob Scuderi would switch teams. Thanks to the handful of remaining fans who are old enough to remember such things, it was eventually explained that this was an obscure type of player transaction known as a "midseason trade."
OK, that's laying it on a little thick, but fans could be forgiven for needing a refresher on how these deals work, given that we'd had only one all season, and that one didn't involve any actual NHL players.