随机选择资源文件并使用它来显示图像

I am using WPF with VB.net code behind. I have a window that has an area for 5 team related pictures at the top to display, which I want to be chosen randomly. These pictures are included in the project as resource files, and I have the following code to grab a list of the resource file names associated with each team, which works:I am using WPF with VB.net code behind. I have