For anyone who knows a little of History they will understand that it was done that way on purpose. Why? So many Presidents like this one can not get elected and do anything they want. Obama in his own words said he wished he could just go around Congress and do what “he feels” needs to be done. My bet is Hitler, Stalin, Mao, Castro, Hussein and now Assad are thankful they did not have a Constitution to keep them in check.
I am sure the founding fathers are thinking they are sure glad they put many of those provisions in the Constitution now.