Answering on a couple of points: 
First, while it might be an easy bridge to cross in saying that if the electorate knew of Fleming's departure before 11/8, that it would have possibly flipped the vote on zoo dedicated funding. I am sorry, but with a margin on Yes being about 39.000 votes over No, I am pretty sure that this amendment would have passed, regardless. 
Second: As mentioned before, the revolving door at the Honolulu Zoo is a lot more deep than just ambition of any one director to rise in the ranks of Zoo management. Guy and others need to really read into what Zoo employees said was Flemings issues with the zoo - Fleming had complained about his frustration working with the city to achieve improvements the zoo needed to keep its accreditation - That is going to be an issue no matter who you hire at this point. 
Better to fix how management and oversight of the Zoo is going to be done in the future before the City hires another director.