diff --git a/Planungsboard.Presentation/UserControls/MenuUserControl.xaml b/Planungsboard.Presentation/UserControls/MenuUserControl.xaml
index d5b37cd..8a45386 100644
--- a/Planungsboard.Presentation/UserControls/MenuUserControl.xaml
+++ b/Planungsboard.Presentation/UserControls/MenuUserControl.xaml
@@ -1,7 +1,7 @@
 <UserControl x:Class="Planungsboard.Presentation.MenuUserControl"
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-             >
+             xmlns:viewModels="clr-namespace:Planungsboard.Presentation.ViewModels">
 
     <UserControl.Resources>
         <Style x:Key="BaseStyle" TargetType="FrameworkElement">
@@ -26,7 +26,7 @@
         <StackPanel Grid.Row="0">
             <Button Content="Open On GitHib" FontSize="5" Style="{StaticResource SideBarButtonStyle}" CommandParameter="https://github.com/haevg-rz/Planungsboard/" />
             <Rectangle Height="100"></Rectangle>
-            <Button Content="New Team" Style="{StaticResource SideBarButtonStyle}" />
+            <Button Content="New Team" Style="{StaticResource SideBarButtonStyle}" Command="{Binding Path=(viewModels:MainViewModel.NewTeamCommand)}" />
             <Button Content="New Card" Style="{StaticResource SideBarButtonStyle}" />
 
             <Separator Style="{StaticResource BaseStyle}" />
diff --git a/Planungsboard.Presentation/ViewModels/MainViewModel.cs b/Planungsboard.Presentation/ViewModels/MainViewModel.cs
index 35e8d15..4a31933 100644
--- a/Planungsboard.Presentation/ViewModels/MainViewModel.cs
+++ b/Planungsboard.Presentation/ViewModels/MainViewModel.cs
@@ -6,6 +6,7 @@
 using System.Windows.Media.Media3D;
 using GalaSoft.MvvmLight;
 using GalaSoft.MvvmLight.CommandWpf;
+using Planungsboard.Presentation.Views;
 
 namespace Planungsboard.Presentation.ViewModels
 {
@@ -16,6 +17,7 @@ public MainViewModel()
             LoadedCommand = new RelayCommand(LoadedCommandHandling);
             QuarterBackCommand = new RelayCommand(QuarterBackCommandHandling);
             QuarterNextCommand = new RelayCommand(QuarterNextCommandHandling);
+            NewTeamCommand = new RelayCommand(NewTeamCommandHandling);
 
             this.DisplayQuarters = new List<string>
             {
@@ -48,8 +50,6 @@ public MainViewModel()
             };
             teams.ForEach(team => team.SetColor());
             this.Teams = teams;
-
-            
         }
 
         private void QuarterNextCommandHandling()
@@ -75,6 +75,14 @@ private void QuarterNextCommandHandling()
             this.DisplayQuarters = newQuarterList;
         }
 
+        private void NewTeamCommandHandling()
+        {
+            var newEntityWindows = new NewGenericEntityWindows<Team>();
+            newEntityWindows.ShowDialog();
+            
+            this.Teams.Add(newEntityWindows.Instance);
+        }
+
         private void QuarterBackCommandHandling()
         {
             var newQuarterList = new List<string>();
@@ -134,6 +142,8 @@ public double TeamLabelWidth
         public RelayCommand QuarterNextCommand { get; set; }
         public RelayCommand QuarterBackCommand { get; set; }
 
+        public RelayCommand NewTeamCommand { get; set; }
+
         #endregion
 
         #region Commands Handling
diff --git a/Planungsboard.Presentation/Views/MainWindow.xaml b/Planungsboard.Presentation/Views/MainWindow.xaml
index 5d067ce..3344c4d 100644
--- a/Planungsboard.Presentation/Views/MainWindow.xaml
+++ b/Planungsboard.Presentation/Views/MainWindow.xaml
@@ -32,9 +32,7 @@
             <ColumnDefinition Width="*" />
         </Grid.ColumnDefinitions>
 
-        <local:MenuUserControl>
-
-        </local:MenuUserControl>
+        <local:MenuUserControl />
 
         <Grid Grid.Column="1" Margin="10">
 
@@ -74,7 +72,7 @@
                             <Setter Property="HorizontalAlignment" Value="Left" />
                         </Style>
                     </DataTemplate.Resources>
-                    <Grid Margin="0,10,0,0" SizeChanged="FrameworkElement_OnSizeChanged2">
+                    <Grid Margin="0,10,0,0" SizeChanged="FrameworkElement_OnSizeChanged">
                         <Grid.RowDefinitions>
                             <RowDefinition Height="Auto" />
                             <RowDefinition Height="Auto" />
@@ -139,6 +137,7 @@
                                 </MultiBinding>
                             </userControls:CardsWarpPanel.Quarter4Cards>
                         </userControls:CardsWarpPanel>
+
                         <Border Grid.Column="0" Grid.Row="0" Grid.ColumnSpan="2" Grid.RowSpan="2"
                                 BorderBrush="{Binding Color}" BorderThickness="2" />
 
diff --git a/Planungsboard.Presentation/Views/MainWindow.xaml.cs b/Planungsboard.Presentation/Views/MainWindow.xaml.cs
index 6ad1a7e..6b1c348 100644
--- a/Planungsboard.Presentation/Views/MainWindow.xaml.cs
+++ b/Planungsboard.Presentation/Views/MainWindow.xaml.cs
@@ -26,7 +26,7 @@ public MainWindow()
             InitializeComponent();
         }
 
-        private void FrameworkElement_OnSizeChanged2(object sender, SizeChangedEventArgs e)
+        private void FrameworkElement_OnSizeChanged(object sender, SizeChangedEventArgs e)
         {
             var grid = sender as Grid;
             var firstColumn = grid.ColumnDefinitions.FirstOrDefault();
diff --git a/Planungsboard.Presentation/Views/NewEntityWindows.xaml b/Planungsboard.Presentation/Views/NewEntityWindows.xaml
new file mode 100644
index 0000000..59e3c45
--- /dev/null
+++ b/Planungsboard.Presentation/Views/NewEntityWindows.xaml
@@ -0,0 +1,12 @@
+<Window x:Class="Planungsboard.Presentation.Views.NewEntityWindows"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:Planungsboard.Presentation.Views"
+        mc:Ignorable="d"
+        Title="NewEntityWindows" Height="450" Width="800">
+    <Grid>
+        
+    </Grid>
+</Window>
diff --git a/Planungsboard.Presentation/Views/NewEntityWindows.xaml.cs b/Planungsboard.Presentation/Views/NewEntityWindows.xaml.cs
new file mode 100644
index 0000000..90df365
--- /dev/null
+++ b/Planungsboard.Presentation/Views/NewEntityWindows.xaml.cs
@@ -0,0 +1,37 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+
+namespace Planungsboard.Presentation.Views
+{
+    /// <summary>
+    /// Interaktionslogik für NewEntityWindows.xaml
+    /// </summary>
+    public partial class NewEntityWindows : Window
+    {
+        public NewEntityWindows()
+        {
+            InitializeComponent();
+        }
+
+   }
+
+    public class NewGenericEntityWindows<T> : NewEntityWindows
+    {
+        public NewGenericEntityWindows()
+        {
+            
+        }
+
+        public T Instance { get; set; }
+    }
+}