about the arrows if you will put blue arrows at the 3 DCs this means that there will be a gap between the defense and the mid, so you need to put blue arrow also at the middle MC and keep the rest arrows.
and also one thing .. you need to remove the red arrows from the STs because red arrows means that they will receive the ball rarely and will not have enough score chances.
so lest them free to go back to receive the ball and then go forward to score goals.