Even though Caesar is not as skilled a warrior as Antony, he is still a strong leader. Caesar manages to get power over the entire triumvirate by planning and plotting from the beginning of the play.
Caesar finds ways to set up Antony, so that he has a reason for why he wants to get Antony, and has an excuse to fight him. When Antony is called to Rome to deal with his responsibilities as a soldier, Caesar expresses his anger that Antony dismissed his duties to be with Cleopatra. Antony argues back and the bickering continues until Maecenas, one of Caesars soldiers, tells them to stop because they must focus on beating Pompey. Another one of Caesars soldiers then proposes that Antony marries Octavia, Caesars sister. He says that this bond would bring them closer and guarantee each others commitment. However, there is no reason why Caesar would let Octavia and Antony be married, when he knows that Antony is with Cleopatra. You can see that Caesar is marrying his sister to Antony because he knows that Antony will run back to Cleopatra, leaving Octavia, and giving Caesar a reason to go after him. Caesar acts like a strong leader by thinking ahead and sending out his pawns (i.e. Octavia) early.
He also sets Lepidus up, in order to have complete control of the triumvirate. He uses the fact that Lepidus relies on him to overcome him. After using some of Lepidus' soldiers to defeat and kill Pompey, Caesar accuses Lepidus of plotting against him and puts him in prison. Now Caesar not only owns his land and is plotting to take Antony's, but he has tricked Lepidus, the third ruler in the triumvirate, and has managed to obtain his land. Lepidus gives Caesar too much control, which is why Caesar takes his land and gives none to Antony.
Caesars is a strong leader and uses other people's weaknesses to his advantage, and plots early in the play to get what he wants.
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