I played your game in Quick Play mode and really liked the overall concept! However, I found the AI a bit difficult to deal with, and I felt like my team's AI was worse than the opposing team's AI. That's just my impression, though!
Other than that, I'd focus on polishing the gameplay mechanics and improving how the team positions itself defensively.
Also, man, I'd really appreciate it if you could check out my volleyball game and leave some feedback too!