The Board didn’t have the guts to bone borghetti because they couldn’t without a fight. Borghetti was a Director. He had a right to full information on everything and authority to attend and vote at all meetings. He had shareholder backing which is why he was on the Board. He was an effing Director, NOT an employee of the company. To remove him if he didn’t want to go would have required the Board to lobby the shareholders, get the votes to requisition a special general meeting, call for nominations, probably for all positions and get the shareholder to vote JB down. The name for that is a #$#@ fight and it would have has to be done in the full glare of publicity which wouldn’t do morale or revenue much good either.
Isn't that why you are paid the big bucks as a member of the board to have those fights? In reality it's all water under the bridge anyway as the major shareholders wanted Borghetti hence the Air NZ departure and the failed attempted to have Borghetti moved on earlier.