"If you look at the first half, the first five or 10 minutes, we were very good, and we were sticking to the game plan."
But he felt the longer the half went on, the more his team went away from their natural game.
"We were trying to unpick them very, very early. In other words with the first or second ball as opposed to playing those three or four short passes."
Just 10 minutes after the opening goal, the visitors squared the ledger through Troy Stollery who slotted the ball into the net from a Dane Stollery cross.
For a team known for its defence, Otumoetai looked susceptible on occasions in the first half, but the score remained 1-1 at the break. "We had a bit of a discussion at half time and positionally we were a lot better (in the second half) and our composure on the ball was a lot better and once we got that we got our reward," said O'Regan.
The results of the discussion were almost seen early. Wright latched onto a through ball and hit the post.
Daniel Miller then poached the first of his two second half goals with a glancing header.
With five minutes left to play, Miller scored his second, again with his head, from a corner.
O'Regan said Otumoetai's season had been one of two halves.
"We scored maybe 12 or 13 in the first 11 games - then in the last five or six, I think we are up to about 12 or 13 - all of a sudden we are getting two goals a game.
They will fancy their chances when they take on table topping Cambridge next weekend.
"We got a draw against Cambridge - one of three teams to take points off them this year - we've only lost to them once in the last three years."
Other results:
Premiership: Papamoa FC 0 Cambridge FC 1; Matamata Swifts 2 Rotorua United 1;
Ngongotaha AFC 4 Waikato Unicol 1.
Championship: Matamata Swifts 0 Claudelands 4; Ngongotaha AFC 1 Kawerau Sports 11; Te Puke United 0 Tokoroa AFC 0; Te Awamutu 1 Cambridge FC 1; West Hamilton 2 Whakatane Town 0.