Case 1 The Departed. Answer the 3 questions below.  Watch clips from “The Depart

Case 1 The Departed. Answer the 3 questions below. 
Watch clips from “The Departed”
Cast: 
Jack Nicholson-Frank Costello 
Alec Baldwin-Captain George Ellerby 
Matt Damon-Colin Sullivan 
Leonardo DiCaprio-Billy Costigan 
Mark Wahlberg-Sergeant Sean Dignam 
Martin Sheen-Captain Oliver Queenan 
Plot:
Irish MobLinks to an external site. boss Francis “Frank” Costello (Nicholson) plants Colin Sullivan (Damon) as a moleLinks to an external site. within the Massachusetts State PoliceLinks to an external site.’s Special Investigation’s Unit (SIU). Ironically, the entire purpose of the SIU is to stop members of organized crime such as Frank Costello. Simultaneously, the police assign undercover state trooper William “Billy” Costigan (DiCaprio) to infiltrate Costello’s crew. When both sides realize the situation, Sullivan and Costigan each attempt to discover the other’s identity before they are found out. 
Answers to these questions as a file (DOC) attachment below:
1-) Is the Special Investigations Unit set up as a functional structure or a divisional structure? 
2-) Given the concerns expressed by Sergeant Sean Dignam at the end of the clip, why is a divisional structure most appropriate for the SIU? 
3-) What specific dangers might Billy Costigan face if the SIU were a functional structure?