Employees track {HEAD ~ their progress} using verbs that are designed to capture the reasons behind {TAIL ~ positive and negative predictive ability} 
Employees track { HEAD ~ their progress } using verbs that are designed to capture the reasons behind { TAIL ~ positive and negative predictive ability }
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL