superimposed wrote...
Well, to be honest you could do without Miranda. She was appointed overseer, but TIM had all the details and the project worked out. He would have revived you eventually, with or without Miranda.
Its implied that Miranda has the right abilities to do the project and get the people and tech necessary to rebuild Shepard. Miranda was placed in charge of Project Lazarus and its whole goal was to find out if it was possible to bring back Shepard and to actually do it if possible. TIM did not have plans and project already worked out.
Could Miranda's job have be done by someone else? Possibly, but we haven't met anyone in Cerberus that comes close to Miranda's abilities. I've just re-read Redemption #1 through #3 and Miranda also plays a role in the rescuing of Shepard:
Redemption #1: Miranda and Cerberus operatives save Liara and Feron from Blue Suns mercs.
Redemption #3: Miranda has opportunity to save Shepard's body after Liara fails to capture it on Omega. Miranda is told to stand down because other assets are in play.
If we can replace Miranda's role then we can also replace Liara's role during Redemption. Liara plays could've been played by anyone. Feron has all the knowledge on the whereabouts of Shepard's body and Cerberus is funding the whole operation. Hopefully Redemption #4 will tell us who Feron is working for (possibly Cerberus?).
As it stands though I still Liara is the main character, followed closely by Miranda. Redemption #4 may change my mind though.