Easy:
- GN Inners operated by 717s to be London Overground, creating a singular interchange point for LO's entire network (well, almost!) at Highbury. Stabling of units can take place at Welwyn Sidings (10 units), Hertford Sidings (Up and Down is 4 units) and then one assumes an additional unit at each of Welwyn Platform 1/4 and Hertford Platform 3 (2 units), giving just storage of 11 units at Hornsey or other suitable locations as required (Gordon Hill Bay? Stevenage Bay? Welwyn Up Yard if improved?). Driver depots at Welwyn and Hornsey.
- GN Outers. Return the 29 387s to Southern and get rid of the 21 365s. This creates a unit deficit of 50. Take on the 30 379s for Kings Lynn-type work and some Peterborough trains, as well as 23 377/5s. This will be 3 more units than before but will create a 100mph, more standard fleet.
- Thameslink
-- Do not run the Welwyn to Sevenoaks service. Instead, make it a peak Royston - Sevenoaks service, all stations from Royston to Hatfield then Potters Bar and Finsbury Park.
-- Amend the Cambridge to Maidstone East service at peak times to be fast from Welwyn North to Finsbury Park.
-- Amend the Cambridge to Brighton service at peak to call only at Royston, Letchworth, Hitchin, Stevenage and Finsbury Park.
-- Replace the Baldock service by using the Royston - Sevenoaks.
-- Offer a peak semi-fast Welwyn to Kings Cross with stations such as New Barnet included. Use 377/5s on sub-lease from GN.
-- Kings Lynn services to be fast from Letchworth to Kings Cross at peak as now. Do not include calls at Ashwell etc.
From the above, therefore, GN will only need to resource some peak Peterborough to Kings Cross, Welwyn to Kings Cross and Kings Lynn to Kings Cross trains. Crew to be based at Kings Cross, Peterborough, Letchworth and Kings Lynn (not Cambridge). Some GN stock to operate to/from Letchworth to work Kings Lynn circuits such as morning peak to reduce siding demand at Cambridge. GN operations to merge with existing LNER. Rolling stock (379s, 377s) to be upgraded to be more Intercity-based with trolley service on Kings Lynn route for catering. Some GN fast services at peak to/from Peterborough to extend to Grantham or Newark if appropriate and potential reduction in Stevenage calls if possible for capacity.
Thameslink crew depots to be at Cambridge, Peterborough and Hornsey. Fast Thameslink services from Cambridge to Brighton to all start/terminate at Cambridge North at peak times.
- Gatwick Express
Dissolve brand and operate Gatwick Express services as part of wider Southern network. All 387s (/1 and /2, 56 in all) to be used as part of a wider fleet including other 377s. 387s also to be used on West London Line with a half-hourly service at peak time from Watford Junction to Purley / Caterham / Coulsdon South / Tattenham (as pathing allows), and the half-hourly service continuing all-day with Milton Keynes services.
- Southern
Some form of reliable battery technology fitted to overhauled 376s to be used on Uckfield Line. Coastway to use 377s etc, and SWR 455s and 456s to be pushed across (better interior, new equipment, 10 car ops) to be operated on peak Metro diagrams only (off-peak trains all 377s). Southern 455s displaced, and 313s. 171s also displaced. A small fleet of diesel units to be based at St Leonards / Chart Leacon and operated by Southeastern for Marshlink in 4-car formation (overhauled 170s, 172s (etc) to be used).
Thameslink to remain merged with Southern (and "Gatwick Express" (not a brand anymore)). No further London Overground take over of Southern Metro area or other routes in this franchise area.