Historical precedent shows how hard it is for a Democrat president to be elected in an open election after 8 years of a prior Democrat president. Hillary has to overcome this. On top of that, Obama fatigue will be intense by 2016. Hillary has to overcome this. Additionally, Hillary brings her own truck full of baggage to the race, and she has to overcome that. She also will be 69, but looks more like 79, and has the appearance of someone you might be more apt to find slumped over in a wheelchair in the hallway of a nursing home than someone running for president. She has to overcome this too.
Not to mention the bruising she could take in the primary with Webb/Chafee attacking her on defense, and O'Malley and Sanders attacking her on money.
