President of Iran: Will he bring change?

On the left is an image of Iran's president, Hassan Rouhani. Here is an article describing his background and some of his beliefs. As we know from reading Persepolis, Iran has had some very conservative leaders in the past who have ruled with very strict, religious outlooks. Rouhani appears to be more open-minded and less conservative than those who have previously held his position. The article states that Rouhani has “tried to control extremism and radicalism among the Iranian political forces” and often in meetings refers to statistics and science as opposed to purely religious sources. Additionally, he hopes to remove Iran's Revolutionary Guard Corps (a group that is known for cracking down on human rights demonstrators) from the political scene. Rouhani is considered a reformer and seems to want to make change in Iran, but will he be able to? Is he the man he says he is?