"There's so much to do, there's very little time."
He said he had always played a back seat role in the party, but that did not mean it was not important.
"I want you to know I'm up for this. I will give it my all. There are times in our life eye. You fall in the zone, you've got confidence that you're read. I tell you today. I'm there."
He said the Maori Party had never deviated from its goal of pushing Maori rights, and both Dr Sharples and Tariana Turia had ensured that. He said both would be instrumental figures in history.
"They've been my teachers. We've had our ups and downs. But they will tell you I love them both. They have led us this far on our journey. We are fortunate they will continue to walk with us. For me, I have a pretty simple approach to the role of being co-leader. I'm your servant."
The selection was run by Naida Glavish, her first job as the newly elected Party President.
Flavell also congratulated Glavish's rival for the job, George Ngatai, saying he had given an impressive speech which left them all something to think about.