Human skills are very important for maintaining high operational efficiency in the chemical industry. It is difficult to quantitatively evaluate the presence of such skills in a staff member because of the intangible and ever-evolving nature of the skills. However, the level of skills required to maintain high standards in a chemical plant necessitates the quantitative measurement of human skills. This paper builds on the value of skills metric, which is used to quantify an individual's level of skills, to determine the effect of a change in personnel on a team's overall value of skills. The value of skills metric contains a weighting factor that reflects the suitability of a skill corresponding to the position of the staff member within the team structure and the time devoted to each skill. A second weighting factor reflects the staff member's position within the team and the effort required to carry out the duties involved. In this paper, we propose a procedure to adjust the second weighting factor.