On Thursday, METRO's board voted to accept Greanias' resignation as present and CEO, effective December 31. However, Greanias will continue to serve as a consultant the agency for six months, as it searches for a new leader.
Meanwhile, Tom Lambert, the organization's former police chief, has been tabbed as interim CEO while METRO searches for a permanent one.
"George took the job over at a very difficult time for METRO and we've come a long way. There was a real crisis of confidence and financial concerns. I think the turnaround here is one of the greatest things that has happened in our community," Chairman Gilbert Garcia said in a prepared statement.
Greanias took over on an interim basis in May 2010 after former President and CEO Frank Wilson resigned over a scandal involving alleged misuse of money and document shredding. The interim tag was dropped in September of that same year.
Greanias himself then got tangled in a scandal after the METRO board suspended him for accessing adult-oriented websites over a METRO Wi-Fi network.