Send any recalcitrant ones who can’t actually be fired to clean up, with buckets and simple sand filters, the Animas River which the EPA intentionally fouled.
But don’t send them to the beautiful parts of the River in Colorado... Send them to clean it in the rather dreary areas between Aztec and Farmington, NM.
No per-diem for motels and restaurants. Set up a tent camp.
Grin! Yeah, it can be a little desolate in the 4 corners area. This time of year would be a good time to send them.
What you got against the Navajo?