To train those "team" skills you don't need a good trainer. That trainer will work the same as an advanced or superior trainer. Don't waste your weeks on those team skills especially if you have young players because those team skills train the same with any trainer and at any age but specific skills like JS will train much more at younger ages so don't waste your players young years training team skills.
You should get at least a superior trainer if you want to train your specific skills like one on one or pressure for example.
Just a suggestion, good luck!