In his first full management role, Frank de Boer secured Ajax four consecutive Eredivisie titles and the automatic Champions League qualification that follows. But 2014-15 proved to be a disappointing season; rather than a fifth title that would have seen De Boer complete his project, the Dutch club finished 17 points behind PSV and have been forced to qualify for this season’s Europa League. Here, De Boer talks about the challenges Ajax face competing at the highest level while losing players ever earlier to clubs across Europe