Some of these suggestions are too complicated. You have to remember that about 80% of registered users are not hardcore BF posters. Dream Team has to remain relatively simple and accessible to the public.
I actually think they should do nothing. Except maybe increase the squad size by about 2 players.
+1 No One knows exactly what the solution will be but IMO whatever it is it will be very simple. The key point is the majority of dream teamers arnt sitting on forums, checking break evens doing research etc etc. Im in the BF Division 5 Dream team league but also in a league with my mates. My mates wouldnt have a clue how scores are calculated and have never herrd of prospectus in their life. Majority of dream teamers are guys who enter for fun or with a work group. I have a neighbour who enters a team with all the players she thinks are hot lol
Point is majority of people do this for fun and dont take it half as seriously as we do. For this reason whatever the solution is it i rekon it will be very simple and plain obvious.