Not-so-new workers

• They're back on board
• Brings on again
• Brings back on
• Familiar work force add-ons, maybe
• Old faces in workplaces, perhaps
• Not-so-new work crew
• Brings back to the team, say
• Puts back on the payroll

Wiktionary Word definitions in Wiktionary
vb. (en-third-person singular of: rehire )