In the beginning of Matt Smith's tenure of being the Doctor you see David Tennant's "Coral" templated TARDIS control room getting, basically, blown up and destroyed.
Therefore the Doctor has to wait a while for the TARDIS to rebuild itself.
Later in the episode called "The Doctor's Wife" we see that the TARDIS keeps a copy of all control room templates in a room of the TARDIS.
So, if that is true, why didn't the TARDIS just take a copy of the old template and place it in the main control room?
Yes I know it is an opportunity to use a new TARDIS set, but that is not what I am asking here.