Ex-Illinois Gov. Rod Blagojevich is scheduled to take the witness stand this week to testify in his own defense at his federal corruption trial. In the five weeks since the trial began, prosecutors have played many recordings of the former politician using countless expletives in multiple profanity-laced tirades. Now, when Blagojevich takes the stand, law experts say he will have to win over jurors, leave behind his notoriously arrogant attitude and even admit some faults.