Welsh national team boss Chris Coleman has stated that recently announced Manchester United boss Louis van Gaal will have a tough time in order to meet the expectations of the club. United recently parted company with David Moyes after just 10 months in charge. The former Everton manager struggled to cope with the intense pressure at United. Towards the end of the regime, he looked a very old and stressed out man. Coleman says that the pressure of managing a big club like United will definitely take its toll on van Gaal.