Well if NASA did not stop throwing billions down the manned spaceflight rathole, it would not be in such a mess. Nobody cares about ISS or SLS and few, if any, scientific discoveries has come from the manned missions. All the science (and excitement) is coming from robotic probes such as Curiousity.
The SLS is the rocket to nowhere; its only purpose is to create jobs.
Unfortunately NASA is run by ex-pilots, not scientists...