I've read through a few guides. Mostly where I started to learn this game was a little more advanced than first perceived. But I'll take a look at the ones I haven't looked through, so thanks for that suggestion.
Appreciate the feedback too. I'm not too confused on tactics or anything, more to do with the amount of players in certain positions/mixes to successfully cover most positions and formations while being able to cover for tiredness/injuries etc. You're suggestions look pretty solid so thanks for that.
The 3* players aren't bought, just what I've restrained myself from replacing as I got cold feet about just buying for two rotation squads in the same formation. I did buy all the 4*'s though except from the ST's as they developed after a few games.
Tah for the tip about the cheap 5* towards the end of the season.