Had a feeling this was coming. As long as LvG was winning games and keeping us near the top, sponsors wouldn't complain as jersey sales would continue apace - South East Asia, I'm looking at you. But if we're not winning and still playing dour football, that will slow down (even though Adidas would be the last to admit this openly). I'm not saying that fans are fickle in remote parts, but that in those areas, new fans are attracted either by success (see City, Chelsea and PSG fans increasing there) or by style (Arsenal continue to attract fans despite not winning).
That's why LvG will face pressure from Ed regardless of any other reason. The club today is a corporation that looks at the P&L more than the PL table. As such, anything that happens on the pitch to hit the P&L will threaten the manager even more than a poor run of form. If LvG gets us winning soon, he's going to be fine. Success will bring in the sales and money. I'm not even going to speculate on style since he's made it clear that he won't change that regardless...