From today's Natinal Post article Lumsden's uncertain future led Ticats to Keith
"[i]Lumsden...has been limited by injury to only five games since. More than the injuries, though, the Ticats seem to have been prompted to act by his contract, which expires at the end of the season.
"The situation with Jesse also had something to do with it," Ticats general manager Bob O'Billovich said. "Jesse has indicated that he wants to wait [to negotiate] until the end of the season, and with him into the option year, there's no guarantee we're going to get the deal done. And if we don't, and if we're just relying on Jesse, it wouldn't be a very good situation."