Have to you talked to the coach about how he/she plans on helping your son improve? Also why are you getting an eval at towards the end of the season? Should have been given to you in the winter.
We get two per year - one at the end of the fall season, and one now. The one we got at the end of the fall addressed some issues with DS's technical skills, which have since improved due to futsal and a skills clinic.
I plan to talk to the coach further, but I guess I am concerned that something like confidence and aggression is more of an inherent personality trait that may not be improvable by coaching or training.
FWIW, I am a single mom and don't know much about sports, so please be kind accordingly.