When I was a freshman in high school, we finished second in our conference with two losses - both times to a team that matched up very well against our run and shoot offense; they had bigger guys in the paint that could move up and down the floor and forced us to shoot from the perimeter with a great match-up zone. I should point out this was back in Feb. '76 - no three point line in MT. So there we were ready to take them on again for the district tourney championship.....had to find a different plan of attack. We went with D. Smith's four corner offense..eight to ten of us could handle the ball no problem....so we patiently looked to attack - bring up a post man to free throw line and makes cuts, etc. Did this all night long and won by 8-10 points as I recall. Granted, it was low-scoring, but I recall many saying the intensity level of that game matched any double overtime thriller where both teams were over 100 pts. each.
High school isn't ready for a shot clock. You got a five second closely guarded rule; there's innovative schemes such as traps, half-court presses; box and one's, etc. Let 'em play.