To be effective, such a reform would have to rely on perfect harmony of views between the emperors and the popes, on the absolute honesty of the electors and on sufficient internal coherence between the various regions of an empire stretching from the Baltic to Sicily and from the Danube to the Scheldt.
These are conditions that are difficult to find all at once. Popes and emperors, often rivals rather than partners, set an example of bitter disputes that ate away at highly centralised powers. This anarchy at the top strengthened the authority of the great feudal lords over their fiefdoms. They took advantage of imperial weakness to try and expand at the expense of their neighbours.
Quarrels were particularly fierce in the Low Countries, still known as « Lower Germany », where the Counts of Holland tried to wrest from the Bishops of Utrecht the vast territories given to them by Charlemagne.