Using the movie "A Few Good Men", please provide some insights

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Identify the key leader(s) and dynamics in the movie, as well as the bases for the leaders' effectiveness, successes, and impacts.
Leaders (characters) are listed in the order they appear in the movie not in the order of leadership status (rank).

Lt. Daniel Kaffee (Tom Cruise)-appointed from the top-down hierarchical command as lead council for the case, the murder of Private First Class (PFC) William T. Santiago (Michael DeLorenzo). Lt. Kaffee is the protagonist who is on a mission to uncover and reveal the truth about a murder. He is arrogant to an extent and performs well under pressure. Although Lt. Cmdr. Galloway has a higher rank than Lt. Kaffee on the base, Lt. Kaffee, as lead counsel, is ranked higher than her in the courtroom in which he has the authority to give orders (as it pertains to the case) for example, Lt. Cmdr. Galloway, stated that she consulted with a witness for the case, Lt. Kaffee, stated that if she consults with a client without his knowledge (ex parte -so to speak) again, he will see to it that Lt. Cmdr Galloway is disbarred (expelled from practicing law).

Colonel Nathan R. Jessup (Jack Nicholson) is in charge of Pfc. Santiago's platoon. He is an authoritarian who pulls rank when necessary. He is chauvinistic. He commands respect, from subordinates and anyone who questions his authority. He is the type of leader who is persuasive, aggressive, and somewhat intimidating. His subordinates follow his command but it's clear that they do not want to get on the Colonel's bad side. I detect a little fear from people who are ranked lower than him. He outranks Lt. Comdr. Galloway and Lt. Kaffee, when he is questioned by the two aforementioned he chooses his words carefully and he does not answer questions directly because he doesn't feel he is required to do so because he outranks almost everyone he comes in contact with.

Lieutenant Commander JoAnne Galloway (Demi Moore)-this character sought to obtain the position as the head attorney for the Santiago case, unfortunately in-house politics got in the way, in which her commanding officer or leader would rather hire a man within the military to lead, thus rejecting Lt. Cmdr. Galloway's request. At first Lt. Cmdr. Galloway is slightly bitter; the intonation in her speech when she speaks with Lt. Kaffee is stern. Sometimes she pulls rank just to command respect in case Lt. Kaffee fails to give ...