Why we are re-doing parts of the film and the plot

Upon reviewing our old plot we had a-lot of trouble actually filming it with location issues and also the plot itself was rather optimistic and to in depth for a small independent school trailer. Also another problem was finding actors, during the week it got dark very early which made it hard to film and it was even harder to find actors at the weekend due to people having weekend jobs so we revised the plot, which I also believe will make a better final product.
This means there is various things we will have to go over again like the shooting script and plot, but I will keep the old ones on my blog to show how the film trailer has changed and evolved into the final product. So things like the production schedule and risk assesment will have to be re-done, I will not delete the old ones because it shows proof of our original planning but also we did use the schedules and risk assessment, it's just we've now changed the plot which will alter where we film and how we do it. But posts like the mood-board and target audience would still be the same for we are altering the plot, the general feel and mood is still the same.