Duncan Keith says Hawks must pledge to play ‘good team game’

It might look like there are a range of reasons for why the Blackhawks are mired in an eight-game losing streak, but defenseman Duncan Keith pointed to just one. He said it’s a lack of commitment from players who need to recognize the team’s true identity. The Hawks aren’t the ridiculously deep, skilled, powerful and fast team they were two seasons ago. They might not even be as good as they were last season. ‘‘I think we understand the way we need to play,’’ Keith said. ‘‘But it’s a commitment. We’re all naturally born to play a certain way, but …