Mr Edwards said other senior staff members were making "self-serving" decisions at the college when he arrived.
"This was a school that wasn't serving its young people or its community."
Mr Edwards said he needed to implement changes to the administration and some in the school community were putting out misinformation about him. He admitted he should have dealt with that better at the time.
Mr Crichton said Ms Anderson alleged if Mr Edwards was introducing the right changes, the ugly reality was that he wasn't taking most of his staff with him. Mr Crichton said Ms Anderson's contention was that Mr Edwards was autocratic, reclusive and dealing with him was difficult and unpleasant.
But Mr Edwards said he felt he got little or no help from senior staff and some were "unyielding" to change.
He introduced a "credit average" system where teachers' NCEA averages were published for all to see, making some staff feel it was a "name and shame" exercise to inform people who were not delivering the goods.
However, Mr Edwards said he had done a similar thing in other schools he had led and the move was akin to what the Government's National Standards were doing.
"[Calling it] name and shame is a cloud to oppose transparency." Mr Edwards said.
Mr Crichton said he wondered if reinstatement would be possible for Mr Edwards, given the depth of feeling from some staff and community members.
But Mr Edwards said the school's and community's problems were much more likely to be resolved with him in charge.