Answer:
Autocratic
Step-by-step explanation:
Autocratic culture is one where the leader is is the sole decision-maker, and makes decisions without consulting others. They use fear to gain control.
The disadvantage of this style is that there is little room for innovation as only one person is allowed to make business decisions.
In this case Roberts is a hands on manager and only chooses what he thinks is the best regardless of the views of his employees.