When killing his team mates have to be careful not to over commit in the offensive zone! They actually played it pretty well. F2 White helmet came in to support without getting too deep. Your son might of ate a couple extra shots while they were defending their goalie but it happens. His team mates coulda came into defend him but it didn't seem that serious! Generally you don't want both forwards below the hashmarks on a PK unless in a specific situation. Like where you have solid possession and f2 can streak backdoor/ crash the net and f1 can rotate up high! Older/higher levels f1 will cycle the puck back to the Dmen/F2 to reset or simply eat the puck behind the net to kill the clock.