I think privatisation had it's merits in terms of innovation, but the cynical nature of the measure was revealed by the lengths of the franchises offered which offered no scope for genuine long term planning and subsequent improvement - Virgin Cross Country for example won a seven year (?) franchise to start in 1997 (it was extended to ten years on a rolling basis I think).
This is such a strategically important operation for the country, and yet what can you actually do in seven years?
New trains take 3-5 years typically to spec, procure, build and test - proven by Virgin not being introduce the Voyager into passenger service til 2002 (they were built 2000-2001, and I'm using Wiki as my source).
That's not my recollection.
Virgin won the initial XC franchise on a 15-year basis to change all rolling stock and double frequencies.
They subsequently won ICWC on a similar basis, and to an extent ran the two franchises as a joint operation.
Both franchises then collapsed financially, largely due to Railtrack being unable to offer 140mph on the WCML (or even 125mph in places).
The franchises were renegotiated under a management contract, with ICWC recovering to the original 15-year timescale but with reduced premiums.
Virgin could not agree terms for XC and so this was retendered on a 7-year basis and Arriva won the franchise in 2007 with a lower-cost bid.
In the process the Birmingham-WCML-Scotland leg was transferred from XC to WC.
There was always a battle between the Treasury and DfT about franchise length, and as always the Treasury view prevailed.
Virgin had its 15-year ICWC franchise term in its pocket, but only Chiltern got away with a long franchise deal in the second franchise round.
Post 2012, ICWC had rolling 2-year "do minimum" management contracts until FirstGroup won a retender in 2019, and the XC can was repeatedly kicked down the road until Covid changed everything.
Both Pendolino and Voyager fleets had long leases agreed by DfT to match the franchise terms.
Pendolinos are now leased until 2027 I think, but Voyagers are essentially up for release now, pending new TOC contracts.
South Eastern and LTS/c2c also had 15-year initial terms, for major route upgrades and stock replacement.