Mertens move is good for everyone. He's a agile tricky winger, who causes a lot of troubles to many teams. But as you people said, he usually under-performs when playing against the big teams. I wonder if it's a mental problem or he's just not good enough. PSV is generally a really smart club, they are kind of broke for a while now, but they managed to sell Lens and Mertens for a good amount of profit and the best thing is, that they already have replecements, who look more promising than the player they have sold. Depay - Locadia - Narsingh will be the best attacking line-up in Eredivisie in a couple of years and no one will even miss Mertens.