This permits projects to be planned and executed with {TAIL ~ the greatest degree} of {HEAD ~ planning accuracy} 
This permits projects to be planned and executed with { TAIL ~ the greatest degree } of { HEAD ~ planning accuracy }
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD