The 41 year old coached Dunedin (formerly Otago) to the national title in 2012 after three years at the helm, before taking a couple of years off to spend time with her young family.
Lauren Piebenga stepped in and successfully defended the title in Dunedin in 2013, but the team spluttered to a seventh place finish last year.
Now, Tasi-Cordtz, a full time teacher at Balmacewen Intermediate, is back in charge.
''I just realised that I really missed that top level,'' she said.
''I guess I rekindled that fire that I had. After winning the championship, I had achieved what I had set out to do, so a couple of years time out was quite nice.''
Tasi-Cordtz started coaching when she was 24, and worked closely with former Rebels and Otago coach Georgie Salter for more than 10 years.
She also helped former Silver Ferns coach and Netball New Zealand president Dame Lois Muir for a year when she led the Rebels.
She was head coach of Otago Under 21 for four years and guided the team to the finals in 2006.
Dunedin's squad for this year's national championships was named last week, and has a more inexperienced makeup than in recent years.
Steel players Gina Crampton, Storm Purvis, Stacey Peeters, Brooke Leaver and Te Paea Selby Rickit are not available due to ''niggly injuries'' and a busy New Zealand A season.
However, shooter Jamie Hume and defender Abby Erwood, who just locked up their first ANZ Championship contracts with the Southern Steel, are available.
Shooter Bridget Thayer, midcourter Sophie Napper, defender Danielle Gray and Erwood are the only players in the team from last year's campaign.
Dunedin beat Southland 60-42 and the Southland men's team 52-44 in warm up matches in Gore at the weekend, and Tasi-Cordtz so far likes what she sees.
''Really nice feel with the girls. We are quite young, so they're really energetic and keen to learn. We footed it really well with the men and Southland,'' she said.
The team will play its final warm up match against Christchurch in Temuka on Sunday, before the championships begin on September 28.
Eighteen teams have been confirmed for the tournament, with the draw and format expected to be announced this week.
''I think we will be very, very competitive,'' Tasi-Cordtz said.
''I don't think we will be underestimated, but kind of a little of the unknown would be fair to say. When you're young you kind of don't know different, so it will be quite good.''
Four Otago teams have made the top 16 of the South Island secondary schools competition in Timaru.
Columba College and Waitaki Girls' High School are pitted with St Andrew's College and Christchurch Girls' High School in pool B, while Wakatipu High School and St Hilda's Collegiate make up group C with Southland Girls' High School and Cashmere High School.
