The unbalanced gameplay we have now in wcs is mostly due:
1. Extremely flawed auto-teambalance (not auto assign) system.
2. Very few new races being released
Some obvious solutions:
1. (Easier solution) Release new races so those players who have maxed all races or most races will have new goal in mind while playing wcs. Requiring people who have maxed all races or most races play a weak race when they have the choice to play a stronger race for their team is illogical.
2. (More difficult solution) Alter the auto-teambalance system so that when either ct or t has 2 more wins than the other team, a random person from the winning team (with kill/death ratio greater than 1.0) will be swapped with a random person from losing team (with kill/death ratio less than 1.0).

*PS I'm only offering advice and are in no way intended to insult anyone etc/whatever/incase of flame (norm).*