With which Manchester is comparable. I don't have experience with the German rural setup, but it is not really relevant to a discussion on franchising in urban Greater Manchester, being the third largest city (if you class it as one) in the UK.
Granted, the size of the locations are comparable. My main source of ire was the ongoing allegation that everything in Germany (or Switzerland, or The Netherlands) is great, and everything we do over here is bad.
As I pointed out on the NYD thread, even Verkehrsverbünde have their limitations. Interestingly, it is noticeable from the map on Ramamfi's post just how many varieties of Verkehrsverbund there are. 'Only' the yellow areas are those we all rave about. The grey areas have no rail integration. The blue areas go no further than timetable co-ordination (although some, like Schleswig-Holstein, have a tariff across the whole area, although the map is incorrect in that this links both Nah.Sh and HVV areas. Most interesting for me is the blue and yellow shaded area around Frankfurt (RMV), where the overall Verbund has rail integration, but the co-ordination of the bus timetables is undertaken by the individual regions! That is the equivalent of TfGM being responsible for the fares, but the borough councils each being responsible for timetables and route planning within their own area.
I firmly believe there is a place for cash on the bus, and it can be sped up drastically. Publishing a fare table would be a good start. Not everybody will use them, but anything, even a "find your fare" tool, is better than the guesswork we have at present. Give the drivers a full float, so people don't scrabble around for change at the bottom of wallets and purses. Giving change for a fare of £2.90 when £3 is tendered is much easier than the customer trying to find £2.90 exact, or the driver changing £5. Sort the float into coin dispensing facilities. (The nearest I can come up with is this:
https://i.ebayimg.com/00/s/MTA2NlgxNjAw/z/bgEAAOSwEZdaFv~o/$_1.JPG) The tray is even often positioned that the driver can start serving the next customer whilst the previous one is collecting their change. Introduce a "pass right" system: passholders should not be stuck in the same queue as farepayers. If security is an issue, use a QR scanner.
These are all "good" things we can import from abroad without the negatives of taking cash on board.