I think you meant to say serious accidents, road works, bad weather, peak time traffic, off peak traffic, days with the letter 'y' in them....? The M62 is a regular, if not quite daily cluster-you-know-what, at least according to local travel info streams, colleagues at work, people I know who drive the M62 daily. And its probably going to get a lot worse when work starts in Leeds on reshaping the infamous Armley Gyratory.
But back on topic, you say simply paths, dedicate crews, max out unit lengths all day, most of which I can't argue with. However can you image the horror that would be expressed by some on here at the suggestion of a heavily subsidised franchise running around fresh air all day? Heck, if a TPE dares to creep into Manchester Airport with a few spare seats the RUK bean counters go into overdrive, so I dread to think how a six car Calder Valley service would be greeted in the middle of a day. Of course the amateur bean counters don't make the decisions, but sadly their views seem to be reflected by those in the corridors of power down in Whitehall. And therein lies the heart of the heart of the problem.
The answer in the short term is blindingly obvious. Rework the franchise agreements to remove the reducing subsidy requirement, accept that the train network is a vital part of our economy's infrastructure & a very important driver of productivity. Allow TOCs to recruit the numbers of staff they effectively need to operate services, and collect revenue. Allow the TOCs to procure additional capacity for those routes that need them. Remove the restrictive requirements for DOO, or any version of crew reductions. More units & more staff will go some way towards resolving these issues at least inside of a couple of years, which in the great scheme of things railway-wise is very much short term.
Maybe in the even shorter term, some reworking of timetables might be agreeable, although reducing services whilst increasing capacity on those that remain might seem like a good idea, but when you consider some routes might only see 1 or 2tph, a single failure could leave people stranded for even longer than they might be now.