the trick is pitching , you can turn over the "repeatable" missions for pitching faster than batting , ie 7500 for 10 strike outs so you are constantly getting 7500 or 10k while your batting accumulates , then when you get a batting its like a bonus jump , so always be mindful of your pitching requirements for both "general missions" and "boss pitching"
i start out with ALE but i do not load up with all ALE players , i go with my best squad , then as all the teams progress , some fastr than others depending on my players , by the time i get ALE complete there are atleast 2 divisions that have progressed further than the others , i choose one and set my pitchers for that division , replace any players from completed divisions , by the time im on my last division , im stacked with all players for it and it progresses fast and its usually almost doone by then anyway
but conquetsis a big jump so i do them , i hate show down so i do not play it