Tony Martin is the only coach in Dunedin that actually knows the understanding of football tactics and players positional play. Next closest would have to be Andy Duncan. Horner is still quite raw but the potential is there.
Other than those mentioned there's none even close
It sounds like Mosgiel just have a better team than Tech and turned up on the day, simple.
The Southern Utd youth team didn't achieve what they did based on natural talent alone. That coaching and management team are doing something right.