the.com/mismanagement

means Running something — a company, a project, a budget — so poorly that the damage comes from bad decisions rather than bad luck.

from Built from mis- (wrongly, badly — from Old French mes-, ultimately Latin minus, 'less') plus manage, which traces back to Italian maneggiare, 'to handle a horse,' rooted in Latin manus, 'hand.' So management literally meant handling the reins well; mismanagement is just the same hands, gripping everything wrong.