At the moment, tasks like Gold Rush, Love Season, Rune Lords, Growth Spurt etc, are based on a global leaderboard that doesn't show anything apart from the 10 top players or so.

What about leagues generated randomly each week (like the Team Race algorithm, but for individuals) where we compete with 20-30 other players with similar Monster Power to perform tasks like collecting gold, feeding monsters food, or crafting runes?

Every position in the league should give out a prize at the end of the week based on how well the individual player has performed.