'A coincidental convergence of events over the past two weeks involving Harvin and Kane last week reveals the potential risks and rewards of acquiring players who have been tagged as troubled. Harvin may be considering walking away from the game, while Kane has shown he’s a star centerpiece for the Sabres (though an injury will delay that a four-to-six weeks). It also points to the fact that, in order to compete, the Buffalo Sabres and Buffalo Bills will have to be savvy when picking out which red-flag players they want to tie themselves to.'