Trinity, as a Reformed church, follows a Presbyterian form of governance. This means that members of Trinity select our lay leaders (elders and deacons) by nominating them and then voting to approve them. These leaders are then ordained and empowered to lead our church. This is different from a congregational form of governance in that while the congregation is encouraged to share their voice into decisions of the church, the responsibility and authority are in the hands of our staff and elected leaders.
Here is a really good summary of biblical qualifications of elders and deacons along with a Reformed perspective on how those roles function within our church.
Ministry teams are comprised of staff, consistory, and others who call Trinity their church home. Each team focuses on a specific area of ministry (i.e. hospitality, discipleship, finance, etc.). You can see a full listing of these teams and who is on them here. These teams meet regularly to focus attention on their areas of giftedness and passion. Full consistory meets every other month. The responsibility of governance, accountability and support of the staff and church is with the Leadership Team.
Trinity's process for selecting leaders begins with the congregation nominating those they believe will lead well. All those nominated will enter a discernment process with the Nomination Team where together they will see if and where they can best lead. The Nomination Team will then assemble a slate of new consistory members for the congregation to vote to approve or decline.