Hey welcome aboard man,
After some reading from kelly's website, what I have understood and have gained from it is the principle ' You should follow the basic strength, explosive, strength, explosive style pattern, meaning first you would do some strength workout in the gym i.e. squatting, deadlifting, bench press, etc to train the part of the body you need to strengthen for your sport, than after gaining a certain amount of strength you would have to utilize the strength gained from the weight room by doing plyometrics, explsove oriented workout, the vertical jump, the power clean, snatch, sprints can be used as measurement tools to test your usuable strength an e.g kelly used was a person who can squat 300lb should be able to power clean 200lbs if not then he would have to do explosive type workout to bridge the gap between strength gained and usuable strength, same can be done with sprint and vertical jump. Then once you have reached the full potential usuable strength, back into the weight room to increase your weight numbers and then followed by explosive workout, but make sure to not only do gym workout alone but also do some sport specific workout e.g. for me I would have to do gym and do sprinting so as not to gain muscle mass from the gym making you heavier and as you were not doing any sport specific workout, you would not perform as much as you used to, so good to not neglect the sport specific workout with the strength and explosive workout and also with explosive workout which involves weights to do above 50% so to maintain your strength. The types of exercise would be best left to the experts on here. Acole, Raptor, LBSS would have more knowledge in to this area of training, so I would follow their advice.
Just my 2 cents regarding the suggestion.