Many Australian businesses outgrow their local agency not because the work is bad, but because capacity is tight and rates are high. Every extra project means a queue or a bigger invoice.
An extended India team adds senior capacity on the same working day, scaled up or down as you need, with more of the budget going into the work. The local standard holds, the bottleneck does not.
It is not about replacing good people. It is about giving them room to do more without the cost curve breaking.