Wenger has been at Arsenal for more than 20 years. There has been no succession planning because even now he doesn't know when (or if) he's going. Arsenal will face the same problems the rags faced when GPC left but with the massive complication that Arsenal have got softer and softer. Everything is done to suit Wenger and Wenger excuses everything. So, name a successful young manager who will try to bring success while not allowed to replace Sanchez (or even Özil) and having a squad of average players with a seething and increasingly absent set of fans? Arsenal's problems have been developing for at least 5 years, now they could take 20 to deal with.