Scheduling & dispatch
Who can do each kind of work, who should take each job, and when it could be done.

Write down what each person can do and what each kind of work needs, licenses included, so the wrong people are never sent. Then ask who should take a job and when it could be done: the people who can, ranked with their reasons, by profit if you like, and new work assigned on its own if you want it.
Which plan
On every plan. Compare plans.
Works with
- Workers, which it needs first
Trades
Every trade.