Which people own teams?  If at least 10 teams are owned, and 5 team play on odd days and 5 teams play on even days, it would be possible to trade players in a chain between those teams so that the player could get the experience of playing in a game every day and level up much faster.  With a relaxed training schedule overnight, it is likely players could regain enough energy to play everyday.  10 teams would be needed since a player cannot be returned to a team for 10 days after being traded.  Just a thought...