People may snigger about the collection of F100's about the place, but Alliance have very prudently acquired these aircraft at the right time/right price and then been in a position to place them into service comparatively quickly once contracts are won.
Their exponential fleet growth over the past few years, primarily using an aircraft well-suited to FIFO operations to airports with a low ACN, is the envy of many operators.
Laugh you may, but they keep steadily growing.