Answer: Systems thinking
Explanation: Systems thinking is an approach used by the experts for operation analysis. Under this approach the analyst tries to establish the relations between different constituents of a large system with the intent of understanding it more clearly.
In the given case, Kathy is concerned about the impact that the changes in two departments will cause to the other department and hence the organisation overall.
Therefore, we can conclude that Kathie's beliefs are consistent with systems thinking approach.