Starving Peleliu out conflicted with the campaign's timetable

Could the Americans have starved the Peleliu defenders out instead of clearing the ridges?

The garrison was well supplied, so starvation would take time while American plans called for the airfield to support the continuing advance toward Japan.

Peleliu's Japanese positions held enough supplies to make starvation a slow approach. American planners wanted the airfield operating in support of the island-hopping campaign and air raids closer to Japan. A strongpoint that could no longer threaten the advance could otherwise be bypassed after attacks disabled its air infrastructure. The reason given for attacking Peleliu was the contemporary assessment that its airfield was needed, although that assessment remains open to criticism.