I think there is a need to include boss coins for the top scorer of the league as well. Managers sometimes get short of boss coins and I think 50 boss coins for top scorer is worth it.
@anshuronaldo Hi, welcome.
There already is such achievement: http://prntscr.com/g8t9qd
For next time you can put you're suggestions here osm-game-features-chatroom-for-all-the-community