If given the choice between a good performance and a good result, I think most youth coaches would prefer to see a good performance. Still, I think there are aspects that one could look for when the result is good, but the performance is poor

adaptation to the circumstances. If a certain play or player that is usually reliable gets shut down, can the team (and the coach) adapt effectively?
ability to close the game out to protect a result
mental resilience. when the game plan isn't proving effective, the players shouldn't resort to brainless kick ball, taking excessive risks, etc.
team first mentality, with everyone actively pulling in the same direction
laser-focus (from team and coach), and looking for an X factor to impact the game. Could be a pre-planned set piece, a quick restart, taking advantage of a sleeping defender, relentlessly battering a sub-par opponent...
assassin's mentality in front of goal if/when a chance arrives