Matt Clinch is based in Adelaide (even though he's from Melbourne), and Dan Lonergan was made redundant last year in the aftermath of the ABC budget cuts.ABC Grandstand have plenty of good commentators, including Adam White, Matt Clinch (sp?) and Dan Lonergan. GW would be a good addition to Fox Footy whilst retaining duties at Grandstand.
GW's the headliner. People from Melbourne who choose to listen to ABC choose it for a reason, and Whateley upholds those reasons (clarity, vivd descriptions, straight down the line calling etc. all the qualities ABC's calls are known for)
He does Friday night and Saturday afternoon, as well as hosting the ABC's weekly footy talk show before the Sat arvo game (Saturday Agenda).
Sunday morning he spends on television at the ABC doing Offsiders, which I'm sure he prepares for the Saturday night before. There's hardly time for travelling if he does TV as well.
He is arguably the hardest worker in the footy media industry right now, plus has a young family to look after. Adding TV calling to his schedule would burn the poor man out in a few months.