"We are going to have to corner this guy, we are going to have to set a fight plan in place of cutting the ring off and keeping the pressure on."
Pettaway, 34, has a strong amateur background and should push Parker in certain areas before the South Aucklander moves on to more challenging opponents. Pettaway's only professional loss came via TKO against retired Russian Magomed Abdusalamov in March, 2012.
Parker's handlers want to keep him busy this year after he produced five wins in as many bouts in 2014.
"What we've proven is activity has been helping us in the development of Joe," Barry said. "He's showing great progress. He's a very intelligent, very talented fighter with great boxing character and what he needs now is experience."
Parker, who will spar with heavyweight world champion Wladimir Klitschko during his training camp in Austria in April, will likely fight again in May, although no opponent has been confirmed.
For Parker's third bout of the year, which has been tentatively planned for Invercargill in July, Barry said they wanted to step up against a big-name boxer as they continued their pursuit of being ranked inside the world's top five by the end of the year.
Despite the hype around Parker, Pettaway remained confident of coming to New Zealand and producing a strong showing.
"I have studied his style and identified his flaws which we will exploit," Pettaway said.