Losing sucks. Anyone who has ever played a sport, a board game with friends, or wanted something only to have ripped away from your grasp by someone else knows this feeling. The following professional sports teams and athletes also know this painfully well. They each had what would have been historic careers or seasons cut short. Figuring out who will lead you to solve the puzzle...
NORTH: +
2007 New England Patriots
Washington Generals
2015-2016 Golden State Warriors
WEST: +
1906 Chicago Cubs
Mike Tyson
2004 New York Yankees

You can validate your puzzle solution with certitude.
PS when you replace the cache itself please make sure it is well hidden. Thanks!