"It is a non-negotiable position that Kathryn Harby-Williams be re-elected to the board with the overwhelming support of all [member organisations] and delegates," the letter read.
"Failure to re-elect Harby-Williams will see the players lose complete confidence in the people entrusted to select the board of NA.
"It would demonstrate that those with the responsibility of electing the board are more interested in selecting well-meaning individuals who contribute little, over people who have the necessary skills, knowledge and expertise to take the sport forward."
The letter, which was signed by player representatives from each team, said that failure to endorse Harby-Williams would result in players meeting to discuss the future of Super Netball, including round nine this weekend, a protest that "may involve industrial action".
"Additionally, no player will be available to represent the Australian Diamonds for the remainder of the year, until the Australian Sports Commission expresses their confidence and satisfaction that the board is truly independent and capable of acting in the best interests of the sport and not representative groups that have both a real and perceived conflict of interest."
The Australian Sports Commission is headed by former Netball Australia chief executive Kate Palmer, who was responsible for driving many of the changes the state bodies are protesting.
The state bodies have remained largely silent on their role in the boardroom stoush, but it is a stoush that has been brewing for some time.
It is understood the member organisations were on the verge of launching a vote of no-confidence in the Netball Australia board a year ago, with clubs left in limbo through on-going delays while commercial agreements were finalised with the likes of major sponsor Suncorp and broadcast partners Channel Nine.
While the new broadcast agreement and subsequent pay deal were hailed as a landmark for the sport, there were concerns behind the scenes that the financial model was unsustainable, with Netball Australia failing to generate the expected revenue to support such a pay increase.
The move to grant the three new licences to AFL and NRL clubs Collingwood, Sunshine Coast Lightning (Melbourne Storm) and the Giants, owned by NNSW but aligned with GWS, also proved contentious. The five existing franchises, which are each run by the state bodies, complained the new teams would siphon off talent that they had not paid to develop.
After nine rounds of the Super Netball competition, the new clubs occupy three of the four spots.