They're contractors. Treating contractors like they're full-time employees, without giving them full-time benefits, can get a company sued, not to mention ding

They're contractors. Treating contractors like they're full-time employees, without giving them full-time benefits, can get a company sued, not to mention dinged by the IRS for back payroll taxes. One way to keep the contractors separate is to only have them employed for a limited time, usually in stints of less than a year.