For a cross-functional role, in which an employee needs to work under different managers, it becomes necessary to compose a team of functional managers for the job interview. In an assessment centre, the candidate is evaluated by a group of experts who determine the technical prowess and behavioural-fit of the candidate for a new role in the organization.
All the different people conducting the interview look for the best possible fit in the candidate, whom they feel can do justice to all the aspects of a job. For eg. a person applying for a marketing role can be interviewed by
a) a senior marketing head to understand the knowledge about the business,
b) a sales manager for knowing the operations of a sales force at the ground/ field level
c) a finance manager to understand whether the candidate knows about the basics of finance why taking critical decisions as a marketing employee