Thomas Vanek lost his scoring touch

Thomas Vanek has not found the back of the net so far this season. He is frustrated... and so are we! Chances are there but his line is not able to find the back of the net. Mikko Koivu is pointless in 4 games and Justin Fontaine has 1 assist. That's it. After scoring 5 goals in 1 game, the attack is struggling with only 5 goals in 3 games. Mike Yeo defended his players by saying that it's the same game when you are trailing, it's difficult to score goals. OK, we all know that it's not easy to score in the NHL. The goaltenders are getting better every year. But is there a possibility that Thomas Vanek just simply lost his scoring touch? He hasn't score in his last 11 games if we include last year playoff games with the Montreal Canadiens. Are you worried by the lack of production from his side so far?