Remember an operator local to me getting various contracts with a local authority and pretty much killed off half of these routes due to "low passenger numbers" which was likely a result of their poor operation more than anything, such as not running to registered routes & timetables, regular breakdowns including on a route operating around 35 miles from their base meaning you'd often have no chance of getting where u need to be with them when this happened, remember them effectively running two routes as one despite being registered as two separate routes, meaning the bus would end up doing one route whilst omitting a large chunk of the other besides the last few miles after finishing the other route (the route being omitted being a local authority contract service), for added fun, the time I did this journey hybrid journey, it was some Renault Master minibus being driven by a maniac.Maybe less so these days considering the expenses of everything but there are still operators who will look at tendered work, undercut others, put low bids in and end up providing a sub standard service that gets them into hot water.
Especially those who take on any work that's going even if that means a huge increase of their operating load rather than taking it slow and steady. Some companies look professional at the start and then their standards soon slip.
Mercifully they've since disappeared, although did so with next to no notice on two contracts forcing the local authority to scramble to find operators, one having to run with no evening trips for about the first month with the new op and the other service was suspended for about a fortnight until someone could take over.