Hey Kevin,
Hummm, I’m not sure.
If you look at http://dev.shoalsummitsolutions.com they all appear to be working.
Maybe first reset your permalinks.
What shortcode are you using? (I believe there are at least two for team schedules.) If the shortcode is part of the basic (free) MSTW League Manager plugin (most of them are), try disabling the MSTW LM Add-ons plugin.
Recheck your shortcode args. There are examples on the above site. It’s certainly good to check the team shortcodes, but a number of other things can cause this problem. The issue is that no games are found for the team and the given season(s).
-Mark