I think Wallam doesn’t suite SM style of play. She prefers a moving circle, or the ability to have it.
When she was a coach at State league level in Perth, her success came from having a moving circle. She then gets the Fever gig, and has to work with a target shooter in JFN. Although they made finals etc, they never got over-the-line.
Diamonds set up, all her success (which they hold every trophy there is) has come from a very versatile shooting circle. If something was to happen to Koenan or Garbin, Wallam would definitely be straight in there.
