Why Some factors to help you decide are the complexity of the work, you don't want to put someone highly trained on an entry$-$level job, or an entry$-$level on a complex assignment. Another one is the impact of service, basically what impact this employee makes on the assignment. Some problems may be missed opportunities. Certain employees may have potential helpful measures or insights that may be missed by other employees being in charge there. Decreased innovation is another possible problem, in which some employees may not feel involved and may be less likely to contribute innovative ideas.