I defer to your expertise on this, but my understanding is that it wouldn't create those problems if they don't already exist. Rival companies would effectively bid to run specific services (or bundles of services) within a constrained timetable against certain obligations.
it's just about feasible to have two operators on long distance routes (e.g. the open access operators like Lumo and Grand Central). On metro style services it doesn't work at all.
I defer to your expertise on this, but my understanding is that it wouldn't create those problems if they don't already exist. Rival companies would effectively bid to run specific services (or bundles of services) within a constrained timetable against certain obligations.