instead of upgrades to that useless thing, i suggest to :

1. get a prize / skills for assist + top scorer and MVP in the league, champions league and cup at the end of the season.
2. a record or history about previous game, growth of players and statistic (not only their FORM AND CARDS)
3. implement an option to choose to accept invitation for friendly automaticaly or un-automatically.
4. make it the transfer market more attractive ( server 1-server 2, server 3-server 5, etc2).
5. Real income from tickets. level 1 we get 200 income without expanding anything.really???

i think those 5 are way better than to implement something visual game, that will costs a lot of time, bug, money and unstable server.