Former Wellington medium pacer Matt Bacon has been offered one of Otago's two remaining contracts.
The other spot has been offered to seamer Jack Hunter, who was contracted for the first time last season.
Bacon (24) has limited experience.
He played three first-class games for Wellington in February and March last year.
The right-armer made his debut against Otago and did quite well, picking up three for 27 in the second innings to help his side seal a 102-run win in Queenstown.
While he does not possess the out-and-out pace Otago would have liked, Volts coach Rob Walter said the young man came highly recommended.
''We wanted to strengthen our bowling after we were found wanting at various times last season due to injury and a lack of form in certain quarters,'' Walter said.
''So we needed to top up our bowling stocks just to make sure we don't find ourselves in a similar position.
''In terms of your top gun fast bowlers, they are like hen's teeth and you never really have access to those types of players. So it was really about finding the next best tier of bowler.
''We did some research on various guys and we had some really good feedback from the Black Caps camp on Matthew who bowled to them regularly in the nets at the Basin Reserve.''
Walter viewed much footage as well and feels Bacon offers the group ''something a little bit different''.
He is a tall player who hits the wicket hard and gets some nice shape with the new ball, something Otago has struggled to do.
''When you look at guys who have not played a hell of a lot, you have to trust your instinct and believe that you can work with them and develop them into the kind of bowler that will fit our group.
''The general theme from all the people I've spoken to is he is a really hard worker and provides energy for whatever team he is playing for.''
Bacon is expected to arrive in Dunedin in the first week of September.
Hunter, who has played nine first-class games and five one-dayers for Otago, had a promising rookie season but he struggled with his consistency last season. But at his best the 22-year-old is a genuine outswing bowler and he can be very handy at the death in limited-over fixtures.
''There was enough there to convince us that if we invest a little bit more in Jack, there is potential there.''
