Easy enough,
consultants charge a lot of $$$ and everything that is expensive is good. If you suggest something (even it's the same) it will always be considered as something to ease your individual workload (all employees are lazy and stupid).
Ergo, let's all become consultants and sell the same work for double $$$
If the result is a major screw up , it's a fault of the system (or the remaining employees).
Cheers