Reassign or hold: computing a per-dispatch technician break-even

Reassign a technician only when per-dispatch break-even costs fall at or below the marginal value of a held job's SLA buffer, not just the 15-minute drive rule. Independent technical note mirroring the canonical version: https://technician.dev/blog/reassign-or-hold-computing-a-per-dispatch-technician-break-even.php Sources consulted: https://www.bluusun.com/