AutoMapper: Why is UseValue only executed once

Why is UseValue only executed once? I need to call the TeamRepository for each request.

How can I achieve this?

Mapping from TeamEmployee to TeamEmployeeInput:

CreateMap<TeamEmployee, TeamEmployeeInput>()
    .ForMember(x => x.Teams, x => x.UseValue(GetTeamEmployeeInputs()))
    .ForMember(d => d.SelectedTeam, s => s.MapFrom(x => x.Team == null ? 0 : x.Team.Id));

private IEnumerable<TeamDropDownInput> GetTeamEmployeeInputs()
{
    Team[] teams = CreateDependency<ITeamRepository>().GetAll();
    return Mapper.Map<Team[], TeamDropDownInput[]>(teams);
}

Domain object:

public class TeamEmployee : Entity
{
    public virtual Employee Employee { get; set; }
    public virtual Team Team { get; set; }
}

View model objects:

public class TeamEmployeeInput
{
    public int? Id { get; set; }
    public string EmployeeLastName { get; set; }
    public string EmployeeEMail { get; set; }
    public string EmployeeFirstName { get; set; }

    public int SelectedTeam { get; set; }

    public IList<TeamDropDownInput> Teams { get; set; }
}


public class TeamDropDownInput : IDropdownList
{
    public int Id { get; set; }
    public string Text { get; set; }
}