Likewise in Bava - 4.5 games in, only 15 of my players have had ratings improvement. Some of those, oddly, show improvement of 4-5 total points. Most 1 point. Then of course all the rest at zero.
Absolutely zero improvements in formation.
Both positional and team formation practice plans have been in place since recruiting started. Depth chart was set during recruiting (don't know if that matters) and starters were not set until a couple games in (again, don't know if that matters).
FYI: Looking at my 5 opponents played so far, a couple have had 3-4 points improvement in formations, with the remaining at 0. And none have had any ratings improvements (not sure how I got the 15 players...)