Answer: Option 1
Step-by-step explanation:
In hierarchical models the line of authority flows from top to bottom. The command is centralized . All the teams when they work together it is difficult to determine the fault on a single team. The accountability for the mistake is difficult to find.
The decision making process in this model will slow down when there is no accountability. It also becomes difficult to bring coordination among the team members in this model. Departments will have their own goals to be achieved than combined goals.