At 12u, give me the 3 highest-rated pitchers in the region and the 2 highest-rated catchers and then the 7 best hitters you can find. With that personnel, even someone who knows very little about coaching will have a winning program.
You're all right about having the ability to put bat on ball. The kids who can do it naturally are an asset, even if they're near-total liabilities in the field.
2 years ago my team represented this list. I said at the start "If I don't screw up we should win state" we did by an average margin of 6 runs a game.
Got close to this again this year and so far we are 17-5 record 1/3 the way through the season.