JustTired
free at last.......
I would make IE subordinate to center-level management.
IE would have all its authority taken away, and act in an advisory capacity only. The final decision on how many cars to dispatch on a daily basis would be made by the center manager.
A center manager would have the authority to invalidate any timestudy that he deemed to be unfair, and would be able to order the IE to restudy the route. The IE would also be required to "run scratch" using safe methods on any route he studied.
How about doing a 3-day ride with the IE person doing all the work. You are just there for directions and area knowledge (and to make sure breaks are observed). Then take his 3 day average and this becomes your dispatch and sporh figure.