Step Two: County Level Caucus
Wisconsin operates on a two-tier caucus system. The first tier will take place at the county level on Sunday, April 17, 2016. One must register between 1:00p.m. and 2:00p.m. The caucus will begin at 2:00 p.m. and will choose delegates to represent the county at the congressional district caucus. The exact location of each caucus will be released by the county parties no later than March 11, 2016.
Step Three: Congressional District Caucus
The congressional district level caucuses on Sunday, May 1, 2016. One must register between 1:00p.m. and 2:00p.m., at which time the caucus will begin. The exact locations of the congressional district caucus will be released no later than March 25, 2016. Congressional district caucuses will select delegates and alternates, pending approval of the presidential campaigns.
To run as an a PLEO or at-large delegate, one must submit the same statement of intent for this position to the state party by May 20, 2017.
The Democratic Party of Wisconsin’s Administrative Committee will select the 10 PLEO delegates, 18 at-large delegates and two at-large alternates at its meeting on Friday, June 3, 2016. The Administrative Committee will be meeting in Green Bay, Wisconsin prior to the convening of the 2016 Democratic Party of Wisconsin State Convention.
It looks like people selected need to be approved by campaigns, so probably they cant fill one candidate's spots with another's people. So unless you want to be a delegate or want to see how the process happens, dont think it's important.