On numerous occasions and more so lately, I have played teams made up of one type of player - usually 6-7s. It is obvious that no attempt has been made to re-allocate their correct positional category. In most cases this gives their team an unfair? advantage in my opinion, and should be penalised.

Hi mate, what advantage do you think the player has with those players?
In my opinion, it is actually an unfair advantage for the player, as each player has certain attribute limits in place, and if that player is running a no6-7 in a centre position, the no6-7 recommended attributes will show and not a recommended centre settings, therefore that player might not set his settings “correctly “ according to what RM suggests….
In all fairness, anyone is beatable, with RM engines changing constantly, one season your strategy works well, and next week is sucks, this is when you need to be proactive and fix it to find the sweet spot. Good luck mate, hope you make it to the top!