A good way to get some control over your upcoming league strenght:

When you start a season and feel you can compete with the rest in your league (move up next league, qualify for CL/Cup) DON'T spend the skill points until the season is finished. At that point your Q will be matched with an according League. Then you simply use your saved up skill points to a) get SA's or Positions or b) get your avarage Q up to a competitive level.

To be honest: I'm trying this the first time but i got that tip from an experienced Manager.

Good luck.