He thought Roderigo already had.
Othello was just out of earshot when Iago talks to Cassio. He has told Othello that he is talking to Cassio about Desdemona but he is really talking about the woman that Cassio is really having an affair with, Bianca. In 'Othello' Iago tricks Othello by planting Desdemona's handkerchief in Cassio's room.
Iago feels that Cassio's promotion should have gone to him. He envies Cassio.
Iago says that he was sleeping next to Cassio and that Cassio was having a dream about making love to Desdemona.
Iago advises Cassio to ask Desdemona to plead on his behalf. This will help Iago poison Othello's mind, as Desdemona will appear to be doing so out of her (illicit) love for Cassio.
Iago is, although he is more likely to get others to do bad things than to do them himself. He does murder Roderigo, after egging him on to kill Cassio. He also induces Othello to murder Desdemona.The villain in Othello is Iago as he twists Othello's mind and gets him to kill Desdemona, steals from Roderigo and kills him, kills Emilia, wounds Cassio and ruins his job.
Othello was just out of earshot when Iago talks to Cassio. He has told Othello that he is talking to Cassio about Desdemona but he is really talking about the woman that Cassio is really having an affair with, Bianca. In 'Othello' Iago tricks Othello by planting Desdemona's handkerchief in Cassio's room.
Iago feels that Cassio's promotion should have gone to him. He envies Cassio.
Iago says that he was sleeping next to Cassio and that Cassio was having a dream about making love to Desdemona.
Iago advises Cassio to ask Desdemona to plead on his behalf. This will help Iago poison Othello's mind, as Desdemona will appear to be doing so out of her (illicit) love for Cassio.
Iago is, although he is more likely to get others to do bad things than to do them himself. He does murder Roderigo, after egging him on to kill Cassio. He also induces Othello to murder Desdemona.The villain in Othello is Iago as he twists Othello's mind and gets him to kill Desdemona, steals from Roderigo and kills him, kills Emilia, wounds Cassio and ruins his job.
Iago's plan is to make Cassio drunk and get him into a brawl that will ruin Cassio's reputation and cause him to lose his position. He urges Roderigo to provoke Cassio "to put our Cassio in some action/ that may offend the isle." As usual,Roderigo is duped by Iago's manipulative words and agrees to do this, even though all he ends up with is a sound beating from Cassio. Iago, however, succeeds in getting Cassio dismissed from his lieutenancy to Othello, which plays in toIago's master plan to ruin Othello.
Iago has multiple plans: a plan to cozen Roderigo out of his money in order to make Iago rich, a plan to discredit Cassio so that Iago can get a promotion, a plan to have Cassio and Roderigo kill each other so that there will be nobody to implicate Iago and a plan to get Othello to discredit himself and kill Desdemona because Iago hates them, possibly because they love each other and he has never loved anyone.
Iago has been passed over for a promotion. Cassio got the promotion to Lieutenant even though Iago had more time in service as a soldier. Cassio got the promotion over Iago because his learning included theory and strategy whereas Iago's did not.
Othello said that Iago is such a loyal friend to Cassio that Iago told about the fight in a way that looked better on Cassio. Even so, Othello fires Cassio and understands that Iago did what any friend would do.
Iago had lied to Othello and convinced him that Desdemona was secretly having sex with Cassio.
Roderigo attacked Cassio but did not kill him. Iago had intended that Roderigo would kill Cassio and then Iago would kill Roderigo. In the scenario you are suggesting, Roderigo is a much more successful fighter than we thought and manages to kill both Cassio and Iago. He would then no doubt have been charged with killing them and might offer in his defence how Iago had conned him out of all his money. Emilia would be able to tell her story and live and it would certainly corroborate what Roderigo would say. Unfortunately none of this would come in time to save Othello or Desdemona, who would both end up dead in any event. Since Cassio is dead, someone else would have to be governor of Cyprus.
It would make it seem that Iago did his part in the plan, where Iago kills Cassio and Othello kills Desdemona. Even though Iago got Roderigo to do it for him.