The franchise model clearly works but how does that relate to the English game. Simple solution would be allocate 3 counties to one franchise.
Durham, Yorkshire, Notts
Lancs, Derbyshire, Leicestershire
Somerset, Glamorgan, Hampshire
Gloucestershire, Warwickshire, Worcestershire
Middlesex, Northamptonshire, Essex
Surrey, Sussex , Kent
This could work 10 games. Top two in final.
4 overseas players allowed for each franchise. Rest of the players drawn from the three counties.
This would run alongside a county competition similar to the current T20. I would also include a minor counties competition and try to include Ireland, Scotland in this format to get a complete national competition. Put aside the month of July for all of this to coincide with holidays and overseas availability.
The counties Would to keep their competition, be able to offer their quota of games but also benefit from the franchise. The knock on from a terrestrial tv franchise would feed downtown counties local offering. Younger players would get greater opportunities at counties and clubs would see more drawn from the club game for the counties and minor counties competition to enhance interest.
The structure and tradition of the cricket authorities makes it difficult to change the status quo, but a radical overhaul of the limited overs game is clearly needed. Some new ideas are needed and this one certainly has its merits.