We need to implement Employee fitment exercise in our company. What are the parameters we can use to map employees to the new positions?

Having the RIGHT PERSON in the RIGHT PLACE  at the RIGHT TIME and for the RIGHT JOB OR TASK assignment is  an on going challenge on its own.    This challenge should NOT be taken as a ONE TIME PROJECT  ... It should be an ONGOING PROCESS aiming at and as part of the CONTINUOUS IMPROVEMENT process related to CORPORATE PERFORMANCE (EFFICIENCY/EFFECTIVENESS) IMPROVEMENT .

The process should take into account several factors .. (1)  JOB DESCRIPTIONS of the concerned employees (2)  Any special (additional) JOB ASSIGNMENTS  (3)  Specific performance (Achievement) criteria and measures   All of the above will be compared to EXISTING CAPABILITY/COMPETENCY ASSESSMENT  based on knowledge, experience, academic qualifications, skill mix/matrix scoring, acquired training, required/planned future training,  desired career advancement path, ... etc.

The amount of work detail involved in making the above work well is NON-TRIVIAL ...  There are specialized companies that may cost you an arm and shoulder to get this job done for you ,,, and it may take anywhere between6 and24 months depending on the size of the organization (number of the employeed), diversity of the business model, and the variance (inconsistency) level within the existing situation !!