To be fair, it was a Mixture of both. AVB is a talented, yet inexperienced Manager. This was part of his downfall at Chelsea, but the other part was the Players. AVB had the job of transforming Chelsea for the future, but the Old Guard didn't like that idea. Yes, they are legends but they treated AVB poorly and not for the first time, gave up on the Manager and waited for Roman to swing his Managerial Axe.