Is there a way to screen print? I'd like to print out my roster to allow me to analyze the strengths and weaknesses of the whole team.

Open the DDSCB screen you want, then click on the "PrtSc" key on your keyboard, then go to Paint (a windows graphic tool that is on most computers) or some other graphics app and do a Ctrl/V to insert that page, and then save that to your computer. Then you can look at it any time you want.

If you use Windows 10 you can also use the snipping tool that comes with it.

When I open up the Snip It tool, it vanishes behind the game screen. How do I get it to show up?

try clicking "alt" and "tab" at the same time.