Cross training shared temporary employees

Has anyone here worked in a setup like this? I am looking at possibilities for this idea and I’m curious about other people’s real-world experiences…

• How well generally does cross-training temporary employees work in professional environments?

• If you have a limited number of temps shared across multiple divisions in the same department, does this actually help with workload balancing?

• What problems or friction points tend to show up with this model?

Thanks to anyone who replies or shares their insights.