With respect to the (no one does field out of season for obvious reasons), I know 20 something years ago there were some that did field event training year round. Indoor shot puts and pole vaulters doing run ups with the ropes. All in the gym. Needless to say, the bball coach was very concerned about his floor since the center circle closely matched the shot put circle. Just like the December/January club players going to college showcases, these were people that were working towards college scholarships, not your every day throwers and vaulters. Year round training has been around for a long time.
So a dead time for club soccer is not the answer in my opinion. Knowing the rules and abiding by the rules is the answer.
