Could Margaret Lockwood's career have been saved?

I've been thinking about Margaret Lockwood lately, as you do (okay no one does except me) - in particular, about what went wrong with her career after the triumph of The Wicked Lady. The most popular star in Britain at what was arugably the high point of the British film industry... within ten years her name was thought to repel audiences from Cast a Dark Shadow.

During World War Two Lockwood's resume was full of hits, notably the Gainsborough melodramas - The Man from Grey, Wicket Lady, Love Story. She was also in some well received other kinds of films such as Dear Octopus and I'll Be Your Sweetheart.

Let's look what followed:
*Bedelia (1946) - which could and should have been right her up her alley (she played a murderess) but was hurt by some odd scripting decisions and inadequate casting
*Hungry Hill (1947) - should have been a blockbuster but the film lacked focus - it needed to be about Lockwood's character through and through but instead she pops in and out of it
*Jassy (1947) - did okay at the box office - a half success - but could've done better. Again, the movie lacked focus. Was Lockwood good or evil or what? It felt like a movie that didn't know what it really was.
*The White Unicorn (1947) - I haven't seen this film yet. It's about delinquent girls.It was a melodrama. Didn't sound very exciting.
*Look Before You Love (1948) - I haven't seen this either but it sounds terrible.
*Cardboard Cavalier (1949) - Lockwood tries comedy but instead of using a well worn source material she decides to play foil to Sid Field. It's not a very good movie.
* Madness of the Heart (1949) - not a bad melodrama, though it has a poor rap. Lacks big name co-stars.
*Highly Dangerous (1950) - an attempt to make a Lady Vanishes style film but it never seems sure of her tone.
She then made three poorly received films for Herbert Wilcox, and basically ceased to be a star.

So anyway what happened to Lockwood's career? What could she have done differently?

I'll try not to be too harsh in hindsight here but it seems her main errors were

*Not featuring against bigger stars. Most of her late 40s movies lacked names- no Phyllis Calvert, no Stewart Granger or James Mason. You had people like Denis Price, Dermot Walsh, Griffin Jones, Dane Clark.... very much the second eleven. Nothing wrong with making a trashy movie but the trashier films generally need stars.

*She should have been the focus of more of her films. Hungry Hill and Jassy in particular pulled against the fact they needed to be women's pictures, about women.

*She should've tried Hollywood. I understand her reluctance, but the material was simply better. Interestingly all the big British stars of the late 1940s - Mason, Granger, Anna Neagle, Michael Wilding - suffered when the 1950s came in, in Britain. The only ones to survive were those who went to Hollywood and stayed. (Phyllis Calvert and Patricia Roc gave it a go but didn't stay).

Margaret Lockwood... a big star who should've been a LOT bigger.