Why did the Rangers sign Dmitri Kalinin? He is terrible. Also, how much does he make this coming year?

Question

LOL at the guy that said he is good in his own end!!! He is TERRIBLE in his own end! I am a Sabres season ticket holder and have seats on the side where the other team shoots at twice. I cant tell you how many times Dmitri has been the direct cause of a goal, the goal is scored and there is poor Dmitri skating around in a corner with his tail between his legs, his teammates glaring at him because he caused yet ANOTHER goal. He is careless and lazy in his own zone and is not worth a bag of pucks. I thought the Rangers wanted a great defense?