Hi, I am a senior Kinect app developer.
I have plenty of experience in developing Kinect app in unity.
So, I can complete your Kinect Controlled Soccer app with high quality.
Please check out part of my Kinect apps in freelancer.com
https://www.freelancer.com/projects/video-services/would-like-hire-Kinect-Expert/
https://www.freelancer.com/contest/Kinect-gesture-mouse-control-1293732.html
If you want a good result, Please feel free to contact me anytime.
Best Regards.