Hourly was never going to be possible, even the old 91 was every 45 minutes and you would really be pushing things to add the run to the hospital direct in the extra 15 minutes, never mind via Hady.
Even Hulleys times didn't allow the full route in an hour.
Daft thing is, I'm sure Stagecoach could interwork with the short hospital service to give something more sensible.
How could they?
Hospital shorts are essentially a 25 min round trip on a 30 min frequency. No real scope for interworking with that.
84 is on a 75 min frequency as the operator who submitted the winning tender offered that frequency as that is what they feel is achievable within the funding available which is enough for 1 bus.
They could have done a Hulleys and tried to sweat the resource to the maximum and offered an hourly service on an unachievable timetable, but they didn't. They could run a higher frequency with a 2nd vehicle and long layovers somewhere but there's not enough money, nor probably demand for that.
A 75 min frequency is the best compromise between demand and funding available.
That's my point really. Even Hulleys wouldn't offer the route hourly and they were known for cutting timetables to fine. If you run via Piccadilly then running via the station isn't that much longer as it's a quieter route.
The whole saga just highlights the question I kept asking those who were pushing for a Hulleys to be removed from the routes, and which not one person would answer: What was the alternative that wouldn't give worse service and cost more?
I've given you an answer several times before...
Other companies (other than Hulleys) operating the routes gives two things:
Certainty for the travelling public that - barring something very out of the ordinary - the service is going to run (it was not out of the ordinary for Hulleys to drop lots of mileage in the last 6 months)
Value for money for Derbyshire County Council and the public purse that the services they are paying for are actually being delivered.
You also don't know that the package of contracts issued to replace Hulleys cost more than the package Hulley's operated.