If a coach came to see him play it must have been due to the recommendation of a baseball person he trusts. If the fundamentals, metrics and proper attitude are visible the coach will likely return for a second look.
I coached 18u Gold softball before becoming a travel baseball coach. One of our players popped up twice and whiffed. One of the college coaches approached me after the game. He told me to tell her not to sweat it. Her swing was just off. He saw everything else he came to see. He said he would be back later that weekend to watch her hit a couple more times.