Having worked for 34 years at the L.A. Department of Water and Power's John Ferraro Building before I retired, I have seen numerous attempts to enhance the public area between the county's government office buildings in the Civic Center.
All have failed because of the unattractiveness of the aforementioned office buildings. The latest attempt will probably be another failure for the same reason.
The only viable solution is to build an enclosed mall — perhaps with a huge atrium — to block the view of the government office buildings. This would truly be a haven for the people who work near or visit the Civic Center.