I was thinking about how a six-team T20 tournament could work based on regionally grouped teams (three counties each). Let's say you picked four players from two of the counties and five from another. Add in three overseas players for a squad of 16. Here's what I came up with on the premise that all England players were available. Players were selected by current county - I know some guys are moving on at the end of the Summer and in the case of Rossington, say, on loan at another. South could do with some more batters, but loads of good bowlers here. But that's what your overseas guys are for.
I would almost certainly bet on the North winning - look how stacked that side is! And good players were left out.
North: Durham / Yorkshire / Lancashire
Stokes, Wood, Carse, Potts
Rashid, Brook, Bairstow, Malan
Livingstone, Buttler, Salt, M Parkinson, Mahmood
South-East: Middlesex / Kent / Essex
Morgan, Roland-Jones, Helm, Eskinazi
Cox, Crawley, Billings, Klaassen, Denly
Lawrence, Critchley, Walter, Cook
South: Surrey / Sussex / Hampshire
Roy, S Curran, T Curran, Topley, Jordan
Garton, Archer, Mills, Alsop
Vince, Dawson, Crane, C Wood
West: Glamorgan / Somerset / Gloucestershire
Northeast, Harris, Douthwaite, J Cook
Smeed, Banton, Gregory, C Overton, Lammonby
Howell, Higgins, Bracey, Payne
Central: Worcestershire / Warwickshire / Northamptonshire
Ali, Brown, Pennington, D'Oliveira
Hain, Stone, Woakes, Lintott, Bethell
Cobb, Keogh, Sales, Rossington
East: Leicestershire / Derbyshire / Nottinghamshire
Ahmed, C Parkinson, Swindells, Lilley
Scrimshaw, McKiernan, Godleman, Reece
Hales, Duckett, Clarke, Ball, Moores