Kranz said that much of the "human factor" dried up after the Moon landings, particularly because the United States viewed the Moon landings as a short-term goal to beat the Soviet Union – and not much more.
When asked in spring 2000 if NASA is still the same place today as it was in the years of the space race, he replied:
 No.
In many ways we have the young people, we have the talent, we have the imagination, we have the technology.
But I don't believe we have the leadership and the willingness to accept risk, to achieve great goals.
I believe we need a long-term national commitment to explore the universe.
And I believe this is an essential investment in the future of our nation – and our beautiful, but environmentally challenged planet.

In his book Failure Is Not an Option, he also expressed disappointment that support for space exploration dried up after the Apollo program.
Writing about his vision for renewing the space program he said:
 
Revitalize NASA.
Lacking a clear goal the team that placed an American on the Moon, NASA, has become just another federal bureaucracy beset by competing agendas and unable to establish discipline within its structure.
Although NASA has an amazing array of technology and the most talented workforce in history, it lacks top-level vision.
It began its retreat from the inherent risks of space exploration after the Challenger accident.
During the last decade its retreat has turned into a rout.
The NASA Administrator is appointed by the President and to a great degree represents the current President's views on space.
If space is put on the national agenda for the coming national election [2000], a newly elected President will have the opportunity to select new top-level NASA leadership that is committed and willing to take the steps to rebuild the space agency and get America's space program moving again.
Kranz said that much of the "human factor" dried up after the Moon landings, particularly because the United States viewed the Moon landings as a short-term goal to beat the Soviet Union – and not much more. When asked in spring 2000 if NASA is still the same place today as it was in the years of the space race, he replied:
 No. In many ways we have the young people, we have the talent, we have the imagination, we have the technology. But I don't believe we have the leadership and the willingness to accept risk, to achieve great goals. I believe we need a long-term national commitment to explore the universe. And I believe this is an essential investment in the future of our nation – and our beautiful, but environmentally challenged planet.
In his book Failure Is Not an Option, he also expressed disappointment that support for space exploration dried up after the Apollo program. Writing about his vision for renewing the space program he said:
 
Revitalize NASA. Lacking a clear goal the team that placed an American on the Moon, NASA, has become just another federal bureaucracy beset by competing agendas and unable to establish discipline within its structure. Although NASA has an amazing array of technology and the most talented workforce in history, it lacks top-level vision. It began its retreat from the inherent risks of space exploration after the Challenger accident. During the last decade its retreat has turned into a rout. The NASA Administrator is appointed by the President and to a great degree represents the current President's views on space. If space is put on the national agenda for the coming national election [2000], a newly elected President will have the opportunity to select new top-level NASA leadership that is committed and willing to take the steps to rebuild the space agency and get America's space program moving again.
Gene Kranz