There is no question that President Obama had a bad year. Nearly every president has problems in his second term. But Obama's management style made this a particularly bad year.
President Obama is not really interested in every aspect of being president. He loves some parts. When he says "I'm really good at killing people" he really means that he likes going through lists of potential drone targets deciding who will live and who will die. It's the parts that he is not interested in that cause him problems.There has always been a great deal of arrogance in the Obama administration. They were sure that they ould remake the world and that lead to overreach. One high-level progressive who deals with the White House complains that "they think their shit doesn't stink". This reenforces Obama's tendency to seek political wins rather than compromise. This also causes him to bypass Congress completely and use executive authority to implement his preferred policies.
There is no sign of any major changes in the White House. No one has been fired. Instead a new spin-artist has been brought in. Inevitably, Obama will have more disasters breakout and will continue to flail about in a reactive mode.