"The manager is doing everything possible to improve the club" depends mostly on how much cash you have lying around in the coffers.
Ok, I got up over 20 million in the bank for a short period and noticed very little effect on this rating. At most I went down to 4.5 balls (but this even be a random blip since fluctuation between surveys is possible, even if nothing happened in between). As of this morning I still had 11 million in the bank but a 5 ball rating.
So, from that I guess there are a few possible conclusions:
-There is no effect on this rating from cash lying around.
-The cash has to be lying around for a longer period of time.
-10-20 million is not enough cash to see an effect.
-You can offset the cash sitting around by making roster moves or just simply bidding on players.
In any case, this rating is certainly not as cut and dried as "x dollars in cash" in your bank account.
Run of the Mill Canadian Manager