If I understand the question correctly, the purpose would be to engage in an authentic and legitimate comparison between both presidents, as opposed to making personalized judgments that resemble talking points from a political party memorandum. There can be several approaches to this question. There are some distinct problems in presidents "attempting" to be like their predecessors. Part of this reason might be due to the fact that there are separate and distinct conditions that face different presidents. For example, when President Roosevelt took office, there was little in way of media criticism of the President, in comparison to now. President Roosevelt's private affairs and his health were concealed from the public as everyone understood what is at stake. In the modern setting, there is little way one can conceive of the media, in all of its different forms, keeping realities of this magnitude silent. The economic challenges facing both presidents bear some similarity, in that a different and new role of government is needed. FDR saw government as a tool to help people, and President Obama sees it, to a lesser extent, in much of the same way. Some could argue with what President Obama is attempting to undertake in health care, he is mirroring much of President Roosevelt.