  Control theory concerns with the question if and how it is possible to drive
the behavior of a complex dynamical system. A system is said to be controllable
if we can drive it from any initial state to any desired final state in finite
time. For many complex networks, the precise knowledge of system parameters
lacks. But, it is possible to make a conclusion about network controllability
by inspecting its structure. Classical theory of structural controllability is
based on the Lin's structural controllability theorem, which gives necessary
and sufficient conditions to conclude if any network is structurally
controllable. Due to this fundamental theorem we may identify a minimum driver
vertex set, whose control with independent driving signals is sufficient to
make the whole system controllable. I show that the Lin's theorem does not
impose any limitations on quantum networks structural controllability. By local
operations and classical communication, one can modify any quantum network to
make it structurally controllable by a single driving signal.
