Trade rumors involving Evander Kane were floating around last summer, and it's no surprise they returned a year later. Kane was productive last season with 28 goals in 70 games, and he has one year remaining on his contract. It makes him a prime asset in the trade market.
And with that comes a familiar question: Should the Sabres keep Kane and work on a contract extension or trade him when his stock is high? Unfortunately, the answer to that question is another question: What is the asking price?
If you tell me what other teams are offering, I'll tell you whether Buffalo should make a deal. The same is true for every single player in the NHL. Babe Ruth was traded. Wayne Gretzky was traded. Therefore, every player in team sports is expendable. It depends on the price.
The Sabres have missed the playoffs for six straight seasons. Rookie GM Jason Botterill should call every team in the league about every player in his organization with the idea he can make upgrades. If another team is willing to give up more for Kane than Botterill thinks he's worth, trade him. If not, keep him – for now.