Your company employs a number of personnel whose mission is to circulate from one location to another and requires using the computers in each of the different locations they visit. It also requires them to be able to access varying programs and databases that are all secured. While you can issue them a user name and password that they can use to do this, you need to consider the extra security offered with an RSA token.
An RSA Token Adds a Virtually Impenetrable Layer of Security
The problem with using a user name / password combination is that this only provides only marginal security at best. In many cases the combination can be figured out relatively quickly by another party who is not authorized to access the protected software or information. With an RSA token you add a second layer of security that unless you happen to have the original token, is virtually impenetrable, leaving your employees free to roam without fear of someone accessing the areas they have been working in after they leave.