You tend to get to be a coach at the AIS by being there as a scholarship coach or assistant coach in the year that either the head coach or an assistant coach pills the pin.
Marty was an assistant who replaced the Head coach Frank Arsego , who resigned over not being re-apointed the OZ junior Mens' head coach .
Phil Brown was the assistant and came in as a head coach when adrian hurley moved out of the head coach role into ( I think) the AIS CEO/GM role.
one of the scholarship coaches came in and replaced Phil's assistant coach, Mike McHugh, when at least one prominent AIS female basketball scholarship holder demanded Mike be sacked over personality clashes.
Mike went on to NZ and coached the tall ferns at the olympics
Phil's assistant then resigned when Kinsman was appointed over the top of them into the HC role, and I think the scholarship coach of that year then came into the assistant role under Dean.
EX state development and NTIC coaches tend to get a good run into the AIS, Stacker, Clarke, McHugh, and Kinsman being examples.