  In strongly correlated metals, long-range magnetic order is sometimes found
only upon introduction of a minute amount of $disordered$ non-magnetic
impurities to the unordered clean samples. To explain such anti-intuitive
behavior, we propose a scenario of inducing electronic (magnetic, orbital, or
charge) order via chemical disorder in systems with coexisting local moments
and itinerant carriers. By disrupting the damaging long-range quantum
fluctuation originating from the itinerant carriers, the electronic order
preferred by the local moment can be re-established. We demonstrate this
mechanism using a realistic spin-fermion model and show that the magnetic order
can indeed be recovered as a result of enhanced disorder once the length scale
of phase coherence of the itinerant carriers becomes shorter than a critical
value. The proposed simple idea has a general applicability to strongly
correlated metals, and it showcases the rich physics resulting from the
interplay between mechanisms of multiple length scales.
