Single step processes are effective and efficient, reducing {HEAD ~ the time} and {TAIL ~ cost} of a two step process 
Single step processes are effective and efficient , reducing { HEAD ~ the time } and { TAIL ~ cost } of a two step process
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH